In 1996-97 Mr. Jain gave the name of his battle “TAPAS”- N.G.O and since then “TAPAS” has taken many burning issues like Augmentation of water resources in Delhi, Revival of water bodies in Delhi, inflated Electricity bills, Correction of electricity meters & Revival of  Power Project, Banning of Junk Food and cola in Delhi School Canteens, Recycling of Plastic garbage, Ban of Polythene Bags, curbing of vehicular air pollution, protection and cleaning of  Yamuna River, Ban on throwing Religious Samagri in River and many other things through P.I.L. in Delhi High Court and Supreme Court.

Vinod Kumar Jain – “the water man of Delhi.’’ has forced the Civil authorities in Delhi to accept the existence of water bodies with historical and ecological significance.

A Successful Exporter of Fashion Jewellery & accessories, resides in Mehrauli Farm House area, Mr. V.K. Jain can take quite a few privileges of life for granted.

In year 2000 Mr.Jain filed “PIL” in Delhi High Court to find ways of water augmentation (Surface & ground water) in the City.

He has been showing way to Delhi Government, Indian Government, MCD, NDMC, DDA, PWD, ASI and infact all the land- owning agencies who rule over water bodies the importance of the rule of conserving & (Augmenting of ground water. Survey Committee of Delhi Government and other land-owning agencies a record of 508 water bodies but Mr. Jain was asked by High Court to survey existing water bodies. He submitted to Delhi High Court about 794 water bodies available in the NCT Delhi. As result of Mr. Jain's efforts. H.C. ordered that all water bodies in NCT should be preserved by Landowning agencies.

In 2001, He again filed a PIL in Delhi High Court to make rain water harvesting (Roof Top) compulsory in NCT Delhi and rain water harvesting on flyovers to augment ground water. Following Jain's Petition, Building By Laws by U.O.I. were amended and made it mandatory for new buildings in capital up to 100 Sq. Mts. area to install rainwater harvesting. Also, water Recycle Plants became a must for all building discharging more than 10,000 litres waste water everyday. Today , no new building can get a Completion Certificate without complying with these orders.