Public Health Engineering Department (PHED), Rajasthan.

Nagpur Muncipal Corporation (Nagpur).

Public Health Department, Goa.

Nashik Muncipal Corporation, (Nashik).

 
Muncipal Corporation of Greater Mumbai.

Bangalore Water Supply & Sewerage Board (Bangalore).

Southern Railway, Chennai.

North Eastern Railway, Jaipur.

Delhi Jal Board, Delhi.

Public Health Engineering Deptt., Mizoram.

Other's :
Gujrat Water Supply & Sewerage Board, Ghandinagar (Gujrat).
Garrison Engineers, Gujrat.
Garrison Engineers, Barmer.

Other's :
Garrison Engineers, Kochi.
Kerala Water Supply & Sewerage Board, Kerala.