Towards sustainable future

Rigel Bioenviron Solutions Private Limited is one of the trusted organizations in the field of biotechnology in India, with special reference to Bio Process Engineering, Environment, Bio Polymers, Bio Chemicals and Renewable Energy serving customers through various OEMs. The company is committed to a foundation of professionalism, operating excellence and sustainable growth. We offer the industry the most optimized Bio Resource Management System by understanding the specific need, budget and ultimate usage of customer while complying with the law of the land. The concept is to enable organizations to concentrate on their core competencies and hand over us the issues connected with Bio Resource Management which is our one of the core competency.

Concept To Commissioning – Engineering/ Project Management Consultancy services to various industries on following areas:

  • Bio-methanation & Bio CNG Production
  • Biopolymer Production
  • Grin based and Molasses based Bioethanol Projects
  • Value Recovery From Organic Wastes

To design, engineer and supervision of construction, erect and commissioning of the State of the Art Processes to optimize capital investment and yield better output. RBSPL is offering these systems as a single point responsibility and the offer is based on significant cumulative expertise of our design and project team with their personalized professional experiences of 30 odd years in process design and turnkey detailed engineering in design/build of bio process plants.

Rigel has a strong R&D team, dedicated in industrial research to develop/ upgrade various biotechnology based products/ processes. We take the pride to be awarded by Bio-Technology Industry Research Assistance Council (BIRAC), Department of Biotechnology, Government of India in July 2020 as one of the Grantee for Prestigious BIG16 Funding in Industrial Biotechnology for an innovative technology commercial scale up to produce Bioplastics from Agro Industrial Wastewaters. This innovation is patent protected and has been highly appreciated by various international scientific publications as well as in European Bio Plastics Conference 2020.

  • Recognised by Department of Promotion of Industry and Internal Trade (DPII) for working on ‘Green technology’ industry and ‘Clean tech’ sector. Valid upto 11.2.2030
  • Recognised by MSME, UDYAM certification
  • Member of Indian Chamber of Commerce
  • Member of Rotary Club of Calcutta South Suburban
  • IP

Patent Number: 288052
Patent Title: Process for Production of Polyhydroxyalkanoates from Industrial Wastewaters in Continuous Mode Reactor System
Inventor Name: Dr. Partha Chakravarty
Status of the Patent: Granted in 2017


  • Invited by GOI and Tamilnadu Govt for National Expo on Eco-Alternatives to SUPs and Start-Up Conference 2022
  • Selected for ‘Startup Conclave’ organized during India International Science Festival (IISF)- 2022 from 21-24 January, 2023 at Maulana Azad National Institute of Technology (MANIT), Bhopal
  • Biotech Startup Expo – 2022 on 9th – 10th June, 2022 at Pragati Maidan, New Delhi
  • BIMSTEC BUSINESS CONCLAVE by Indian Chamber of Commerce, June 13 - 15, 2023, Hyatt Regency, Kolkata
  • Bihar Investors’ Meet, Government of Bihar in collaboration with Indian Chamber of Commerce (ICC), 14th July 2023, ITC Sonar, Kolkata
  • Biodegradable Expo 2023, 5-7 June 2023, Pragati Maidan, New Delhi

Talks Delivered

  • Invited for ‘Spotlight Talk’ on entrepreneurial achievements at IIMCB Warsaw, Poland, March 16, 2022
  • Invited talk at Pratyasha – RCC District Assembly, May 21, 2023
  • Invited talk at ‘My story session’ at two-day Capacity Building Training on Innovation & Entrepreneurship at Central University of South Bihar, KIIT TBI, from 27th January – 28th January 2022
  • Delivered motivational talk on ‘Entrepreneurial Lesson’, Haldia Institute of technology and Global Institute of technology, 19 -20 August, 2020
  • Invited Talk as Keynote Speaker at University of Engineering and Management, Kolkata, 27 th August 2023
  • Invited talk at Second RCC Zonal Workshop at Jaynagar, West Bengal