1. 1. Central Pollution Control Board (2009), Evaluation of Operation and Maintenance of Sewage Treatment Plants in India-2009, Control of Urban Pollution
   2. Status of Water Supply, Wastewater Generation and treatment in Class-I cities and Class-II Towns in India, CPCB, New Delhi (December).
   3. Chennai Metropolitan Water Supply and Sewerage Board (undated presentation), Sewage Treatment Plants of CMWSSB.
   4. High Powered Expert Committee (HPEC) (2011), for Estimating the Investment Requirements for Urban Infrastructure Services, Ministry of Urban Development, March 2011.
   5.  „Water Treatment Technology in BWSSB‟, Presentation to the Working Group on Urban and Industrial Water Supply and Sanitation for the Twelfth Five Year Plan, New Delhi,
   6.  “Report Performance evaluation of sewerage treatment plant under NRCD conducted by CPCB in August 2013.”
   7. Report of PwC for Closing the water loop: Reuse of treated wastewater in urban India September 2016 Knowledge paper.
   8. WSP programme on RESOURCE RECOVERY & REUSE SERIES, wle.cgiar.org
   9. Presentation byJoseph, Ravikumar, Rajiv Raman, and Shubhra Jain for Wastewater recycle and reuse: an economical and sustainable option, Water and Sanitation Program March 2014.
   10.  Report of V Valley Integrated Water Resource Management: the Bangalore Experience of Indirect Potable Reuse by Uday G. Kelkar, and Milind Wable, and Arun Shukla 2012.
   11. Report on Tertiary treatment ultraviolet disinfection www.watercare.co.nz
   12.  Presentation of regional workshop – “sustainable water and sanitation: best management practices – “potential & challenges wastewater recycle and reuse Sanjay Kr Guleria New delhi.
   13. Centre for Science and Environment [CSE] (2010), Doit-Yourself Recycle and Reuse Wastewater, CSE, New Delhi (March).