Rocky and uneven surface of Peninsular India
Dry tracks of Rajasthan and Gujarat.
Brackish groundwater region of Uttar Pradesh
Deltaic regions of Mahanadi, Godavari and Krishna
Bankura
Paschim Medinipur
Purba Medinipur
Purulia
Andhra Pradesh
Chhattisgarh
Jharkhand
Rajasthan
Ukai Dam
Krishnaraja Sagar Dam
Srisailam Dam
Mettur Dam
CO2
H2S
CH4
NH3