| Government / Regulatory Bodies |
 |
 |
 |
| Government of Kerala |
Ministry of Environment and Forests (MoEF) |
Govt. of Uttarakhand |
 |
 |
 |
| Government of Orissa |
Tamil Nadu Road Development Corporation Ltd |
Mumbai Metropolitan Road Development Corporation |
 |
|
|
| Central Pollution Control Board |
Municipal Corporations of Delhi, Greater Mumbai, Guwahati and Kottayam |
|
