Management Team

Mr. Suman Ghosh - Founder Member and Managing Director

Mr Ghosh is having more than 22 years of experience handling EPC Contracts by way of serving different Corporate Companies at various positions. The companies he was associated with were the following:-

• Civcon Constructions Pvt Ltd (1991-92)
• ISGEC JOHN THOMPSON(1992-94)
• NICCO CORPORATION LTD (1994-2004)
•  RAMKY INFRASTRUCTURE LTD (2004-05).

He has successfully completed various prestigious Turn Key projects. To name a few project engagements are as follows:-

• LPG Terminals at Visakhapatnam-Vijaywada-Secunderabad ( Client-Gas Authority Of India Ltd, Consultant- EIL )
• Evaporation Batteries for Aluminate Liquor ( Client- National Aluminium Company Ltd.,Consultant- EIL)
• Mechanical & Piping Works III ( Client- National Aluminium XCompany Ltd,Consultant- EIL)
• BOD Plant for Cockoven Byproduct (Client – Rourkela Steel Plant), Gas Cleaning Plant for Twin Hearth Furnace ( Client- Durgapur Steel Plant)
• Gas Cleaning Plant & Sulphuric Acid Plant at Ghatshila ( Client- Hindustan Copper Ltd, Consultant- FEDO )
• Medium Pressure Boiler Project for CPP-1 ( Client- Rourkela Steel Plant, Consultant- M.N.Dastur & Co Pvt Ltd)
• Laboratory Building at Khasmahal,Jamshedpur (Atomic Mineral Division)

Mr. Abhijit Roy- Sr. Vice President- High Rise Building  Division

Mr  Roy  completed his B.E. from Bengal Engineering College in 1987 . He is having more than 31 years of experience handling D&E, Housing & Hotel  Contracts by way of serving different Corporate Companies at various positions. He is Active Member of following professional bodies.

• The Institute of Engineers
• He is Chartered Engineer.

He had very much gracious presence with following professional houses serving various prestigious projects throughout India and Abroad

• Ghosh,Bose & Associates (1987-95)
•  Development Consultants Ltd(1995-2003)
• Sanjeevani Estate Pvt Ltd (2003-2005)
• Fort Projects Pvt Ltd(2005-06)
• Ambuja Housing & Urban Infrastructural Co Ltd(2006-2013)
• Mani Group (2013-2014)
• Self Initiative (2014-2016)
•  Rainbow Infrastructure Pvt Ltd (2016 to till date)

He has successfully completed/associate with various prestigious projects with involvement by way of D&E, Planning & Monitoring, Project Management  like

• JW Marriot Hotel & Service Apartment in Kolkata
• MANI CASADONA- IT Complex at Rajarhat
• 42, Chowringee Road – 62 Storied Residential Tower at Kolkata
• Coutyard Marriot Hotel in Siliguri
• Swarnamani – Multistoried Residential Complex beside VIP Road
• UPOHAR- Multistoried Residential Complex in Kolkata
•  City Centre- Commercial Complex at Siliguri
• City Centre- Commercial Complex at Raipur
• Ecospace – IT Complex at Rajarhat
• Neotia Hospital at Siliguri
• UJJAS – Multistoried Residential Complex at Siliguri
• Eco Suite,Eco Centre,IT Aajkal – Commercial Buildings at Rajarhat
• CCNT Annexe- Multilevel Car Parking
• Residential Complex at Raichak
• Silver Spring & The Silver Arcade – Highrise Buildings beside VIP Road
• The Spring Club
• ITC Sonar Bangla- Five Star Hotel
• Boutique Resorts in Bhutan
• Rabindra Bhavan- An Auditorium & Cultural Complex
• Modernaisation of Imphal Airport
• Office Complex for Orissa Industrial Infrastructure Development Corporation, Rourkela,Orissa
• Export Promotion Industrial Park for Orissa Industrial Infrastructure Development Corporation
• Staff Quarters for Greaves Ltd at Falta,WB
• Indira Gandhi Science Complex for Bihar Council On Science Technology at Patna
• Satyendranath Bose National Cancer for Basic Science for Satyendranath Bose National Centre at Salt Lake, Kolkata
• Orissa Lamp Factory Complex for Orissa Lamp at Khurdah Road, Orissa
• Electronics Factory Complex for Siemens Telematik Ltd at Salt Lake, Kolkata
• Calcutta Govt Engineering College for Jadavpur University, Salt Lake
• Multistoried Office Building Complex for SBI at Kolkata
• Water Towers for West Bengal Fisharies Development Corporation at Frasergunj
• Staff Quarters for Botanical Survey of India at Shillong & Barapani,Meghalaya
• Office Building for Industrial Development Bank of India, Bhubaneswar .

Mr. Sandip Guha - Vice President – Electrical  Division

Mr.  Guha  completed his B.E. from Bengal Engineering College in 1991. He is having more than 27 years of experience D&E, Project Management, Planning & Monitoring various Contracts by way of serving different Corporate Companies at various positions. He is Active Member of following professional bodies.

• Indian Institute of Plant Engineers.
• Fellow of “The Institute of Engineers”.
• Level D from IPMA.

He had very much gracious presence with following professional houses serving various prestigious projects throughout India and Abroad

• M.N.Dastur & Company Ltd (1991-97)
• National Hydroelectric Power Corporation Ltd(1997-2007)
• Larsen & Tubro-Sargent & Lundy Ltd (2007-2013)
• S.K.Engineering & Construction (2013-2016)
• Vikram Solar PvtLtd(2016-2017)
• Rainbow Infrastructure Pvt Ltd (2017 to till date)

He has successfully completed/associate with various prestigious projects like

• 3X30 MW Laktak Power Station, Leimatak,Manipur for NHPC
• 3X20 MW Rangit Hydel Power Station, Rangit,Sikkim for NHPC
• 1,50,000 TPA Sponge Iron Plant with Cogeneration facility of 2×7.5 MW at Dagri,MP for Prakash Industries Ltd
• 1,50,000 TPA Sponge Iron Plant at Champa, MPNova Iron & Steel Ltd
• TISCO Phase-IV Modernaisation, Jamshedpur for TISCO
• 2X31 MW Combined Cycle Power Plant,Cuddalore for L&T Power
• 2X60 MW – Reinforcement of Wadi Al-Dawaser Power Plant, Wadi for Al Toukhi Company,KSA
• 2X80 MW Simple Cycle Project for Reinforcement of Al Qurayat Power Plant for Hyundai Engineering & Construction Ltd
• 2X600 MW ,Shree Singaji TPP,Stage I, Malwa for Madhya Pradesh Power Generation Corporation Ltd
• 2X600 MW TPP,Anuppur phase I,Anuppur for Lanco Infrastructure/Moser Baer
• 2×250 MW Open Cycle Power Plant,Azzour & Sabiya,Kuwait for Alghanim International
• Tufanbeyli (150 MW)TPP at Turkey for Enerji SA
• Wirye Combined Heat & Power Plant (450 MW) at Hanam, South Korea for Wirye Energy Service & Co
• North American Polypropylene (NAPP) at Redwater Albarta, Cnada for North American Polypropylene ULC
• Karbala Refinery Project at Karbala,Iraq for HDGSK JV
• Roof Top Solar Project at Haryana for Denso
• 2×65 MW,NTPC,Rajasthan for NTPC
• 10 MWp Power Plant at Badsid,Rajasthan for Solar Energy Corporation Of India
• 10 MWp Solar project near Madanpalle,Tirupati for TTD Development Authority,AP
• 2X10 MWp Solar Project at Karnataka for Jindal Steel

Mr. Subhashis Mukherjee - Vice President – Water Management & Irrigation Division

Mr  Mukherjee  completed his B.E. (Civil) from Bengal Engineering College in 1991. He did (Partial Accomplishment ) Post Graduate Diploma in Business Finance (PGDBF) from Indian Institute of Finance, New Delhi. He is active member of following professional bodies.

• The Institution Of Engineers India
• Indian Association of Hydrologists
• Indian Road Congress

He has co-authored a  paper on “Hydrologic and Hydraulic Considerations for Planning and Design of Culverts for Road Drainage” published in “Indian Highways”, Sept 2011.

He is conversant with design softwares like, HEC-HMS,HEC-RAS, Hydraflow Express , EPANET etc used for Hydrological and Hydraulic Analyses.

He is having more than 27 years of experience of Design Engineering, Project Management, Planning & Monitoring various projects by way of serving different Corporate Companies and Govt. Department at various positions.

He has worked with following professional houses serving various prestigious projects throughout India and Abroad.

• Rainbow Infrastructure Pvt Ltd (Sept ’18 to till date)
• International Consultants and Technocrats Pvt Ltd (ICT), (From Oct’08 to Aug’18)
• Irrigation & Waterways Department, Govt of WB (Mar’00 to Oct’08)
• Development Consultants Ltd ( From 1995 to 2000)
• ITD Cementation Ltd (From 1991 to 1995

He has successfully completed/associated with various prestigious (major) projects like

• Design of Flood Protection Works for Jiya Bharali River, Tezpur, Assam
• Team Leader, Third Party QAQC project of West Bengal Accelerated Development of Minor
• Project Management , Construction Supervision (for bridges and other Hydraulic Structures) for Rehabilitation of hummingbird Highway, Belize, Central America
• Project Management , Construction supervision (Hydraulic Structures) of A104 Highway from James Gichhuru Junction to Rironi , Kenya, funded by World Bank
• Project Management , Construction supervision (Hydraulic Structures) of Sibiti Brisge with its Approaches, Tanzania,  funded by United Republic of Tanzania
• Design and Rehabilitation Kanpur Branch Canal under UPID, Uttar Pradesh, funded by World bank
• Consultant/Advisory Services for Operation and Maintenance, Upgradation and Management of water supply facilities of Haldia Water Supply Project under Haldia Development Authority.
• Consultancy for Detailed Design Engineering of Kumasi Roads and Drainage Extension Project, Ghana, funded by Agence Francais de Development
• Preliminary Engineering Design for Third Ulaanbaatar Service Improvement project (USIIP 3), funded by World Bank
• Project Management , Construction Supervision (Hydraulic Structures) of  Jijiga Togochale road project, Ethiopia
• Detailed Engineering Design (Hydraulic Part) for Ganga Expressway project, Uttar Pradesh
• Preparation of Detailed Project Report for Dwarakeswar Gandheswari Reservoir Project in the state of West Bengal
• Development of Left Bank Canal System from the Barrage across Teesta at Oodlabari, Jalpaiguri, under Teesta Barrage project
• Project Management activities of 400 TPD Newsprint Paper Project at Village Doswada, Surat, Gujarat.
• Supplying and Laying, on EPC Basis precast concrete pipe and box units under running road/railway tracks by Pipe Jacking Technique, for more than 5 projects of similar nature.

Mr. Kallol Mukherjee - Vice President-Industrial  Division

Mr Mukherjee completed his D.M.E. in 1992. He is having 23 years experience with various companies as follows:

• K C Cottrell India Pvt Ltd, South Korea
• WPIL Ltd, Kolkata
• NICCO Corporation Ltd, Kolkata
• Incorporated Engineers Ltd, Baroda

Project Executed for the Client’s So Far :

• Indian Oil Corporation Limited, Gujarat Refinery, Baroda, India
• Indian Oil Corporation Limited, Panipat Refinery, Haryana, India
• Indian Petrochemical Corporation Limited, Dahej Plant, Bharuch, Gujarat, India
• Steel Authority India Limited, Bhilai, Chattishgarh, India
• Neelachal Ispat Nigam Limited, Jajpur, Orissa, India
• Visakhapatnam Steel Plant, Andhra Pradesh , India
• Brooke Bond India Pvt Ltd, Ghatkeswar, Hyderabad, India
• National Diary Development Board, Hyderabad, India

Project Executed under the Consultant So Far :

• Engineers India Limited, Delhi
• MECON Limited, Ranchi
• MN Dastur, Kolkata

Project Executed :

Process Plant :

• Effluent Treatment Plant with implementation of VOC System in OIL Refinery of Indian Oil
• VCM Incenaration Plant With Chlorine Recovery in Petrochemical
• Ammonium Sulphate Plant in Coke Oven Battery of Steel Plant
• Final Gas Cooling Plant in Coke Oven Battery of Steel Plant

Plant Utilities & Storage :

• Floating Roof Storage Tank with allied Piping in OIL Refinery of Indian Oil
• Cone Roof Edible Oil Storage Tank
• Fire Fighting System, Fire Alarm System and Plant Communication in Oil Refinery
• Interplant Cooling Water Piping for Power Plant

Air Pollution & Others :

• Electrostatic Precepitator for Cast House of Blast Furnace in Steel Plant
• Dryer ESP for Copper Smelter Plant
• Furnace ESP for Copper Smelter Plant
• Hot Air Generator for Food, Paper and Cement Industry

Functional Area:

• Contract Scope identification and Kick-off
• Planning Package Finalisation and in house approval of Project Execution Budget.
• Billing Schedule Finalisation and Cashlflow Projection
• Client / consultant co-ordination including attending review meeting and submission of monthly Report
• Co-Ordination for Drawing Approval, Ordering and material delivery
• Site Co-ordination for sequential material despatch for smooth work progress
• Raising of Invoice and ensure Collection of Payment
• Generation of Trouble Reporting and it’s preventive measure
• Extra Claim generation, submission, clarification and it’s realisation
• Delay Analysis Record keeping and It’s submission towards LD Waiver
• Project Close out Report submission for Contract Closure

Type of Work &  Equipments Handled:

• Civil : Water Retaining Structure, Tower, Pump House, Control Room, Sub-Station,RCC Road,Trench and Architectural Finish of Building including Floor and Roof Treatment, A/R Brick Lining.
• Mechanical:Large Dia Floating Roof CS Tankages, SS 316 L Tankages, Heat Exchangers, Centrifugal, Horizontal and Screw Pumps, Oil Skimmers, Clarifiers,ID Fan, Larger Dia Ducting, Duct Structure, CS,SS and Lined Piping of IBR and Non IBR with Valves
• Electrical : HT Sw Gear, MCC, PMCC, PDB, Lighting Transformer, HT Transformer, Plant Illumination, Lighting and Earthing System
• Instrumentation: DCS, PLC, Analysers, Various measuring field Instrument, and Control Instrument.

Mr. Debasish Chatterjee - Deputy General Manager- Electrical  Division

Mr  Chatterjee  completed his B.E. from Asansol Engineering College in 2002 . He is having more than 16 years of experience handling EPC Contracts by way of serving different Corporate Companies at various positions. He is a Member of The Institute of Engineers and he is Chartered Engineer.   He was with

• Bharat Heavy Electricals Ltd (2004-2005)
• ABB Ltd(2006-2012)
• DESCON Ltd (2012-2014)
• SPML Infra Ltd(2014-2015)
• Techno Electric & Engg Co Ltd(2015-2017)
• Rainbow Infrastructure Pvt Ltd (2017 to till date)

He has successfully completed/associate with various prestigious projects like

• Rural Electrification under RGGVY & BRGF Scheme in Patna & Gaya in Bihar
• Railway Electrification Project (TSS) in Uttar Pradesh, West Bengal, Tuticorin
• APDRP Project in Barrackpore Town through WBSEDCL
• Rural Electrification under RGGVY Scheme through NTPC at Purulia
• 220/132 KV, 132/33KV Substations of JBIC Project ,WBSEDCL

Mr. Arindam Kar- Deputy General Manager – High Rise Building  Division

Mr  Kar  completed his B.E. from Jadavpur University in 2002 . He is having more than 16 years of experience handling EPC Contracts by way of serving different Corporate Companies at various positions. He is a Member of The Institute of Engineers and he is Chartered Engineer.   He was with

• NICCO Corporation Ltd (2002-2005)
• Ramky Infrastructure Ltd(2005-2009)
• Tata Steel Ltd (2009-2016)
• Tata Metaliks Ltd(2016-2017)
• Rainbow Infrastructure Pvt Ltd (2017 to till date)

He has successfully completed/associate with various prestigious projects like

• Vazag LPG Terminal for GAIL
• Blast Resistant Control Room for LAB Project at IOCL, Baroda
• D2O Upgradation Plant for NPCIL, Tarapur
• Backwash Filtration Plant for Slab Cluster & HSM for TISCO, Jamshedpur
• Integrated Waste Management Plant at Haldia for West Bengal Waste Management Ltd
• 20 MGD WTP at Rajarhat for WBPHE
• Coke Oven Battery 10,11 & Byproduct under 3 MTPA Expansion Project for TISCO,Jamshedpur
• 16 L Residential Complex over 50 Acre area at Kalinganagar, Tata Steel KPO

Mr. Tapoj Roychoudhury - Director

Mr. Roychoudhury was self developed entrepreneur since beginning of his career. In the name of TRADCO ENGINEERING CORPORATION, he served all major industries for more than 20 years. He served all the major houses like NICCO, BOC, CESC , TISCO, IOCL, Indian Rare Earth Ltd., Hindustan Liver, HPCL , FLACT with various engineering products specifically pipes, fittings, gratings, structures etc. He tied up with the inception of RIPL since starting period.