S. R. Paryavaran emerges as L1 bidder for development of RO-based treatment plant in Baran, Rajasthan June 13, 2025 | Awarded, Key Segments, Municipal Wastewater, Project Updates, Wastewater S. R. Paryavaran Engineers Private Limited has emerged as Lowest bidder (L1) for developing an RO (Reverse Osmosis) based plant … This content is restricted.