| Central Headquarters |
| 1 |
CGWB, CHQ |
Faridabad |
Entire Country |
| Central Ground Water Authority |
| 2 |
CGWA |
New Delhi |
Entire Country |
| Rajiv Gandhi National Ground Water Training and Research Institute |
| 3 |
RGNGWTRI |
Raipur |
Entire Country |
| North West Himalayan Region |
| 4 |
North West Himalayan Region |
Jammu |
U.T. of Jammu & Kashmir and Ladakh |
| 5 |
Division-VII |
Jammu |
U.T. of Jammu & Kashmir and Ladakh |
| North Himalayan Region |
| 6 |
North Himalayan Region |
Dharamshala |
Himachal Pradesh |
| 7 |
Division-XVII |
Dharamshala |
Himachal Pradesh |
| North Western Region |
| 8 |
North Western Region |
Chandigarh |
Punjab, Haryana, Delhi & U.T. of Chandigarh |
| 9 |
State Unit Office |
Delhi |
Delhi |
| 10 |
Division-II |
Ambala |
Punjab, Haryana, NCT of Delhi & U.T. of Chandigarh |
| Uttarakhand Region |
| 11 |
Uttarakhand Region |
Dehradun |
Uttarakhand |
| Northern Region |
| 12 |
Northern Region |
Lucknow |
Uttar Pradesh |
| 13 |
Division-III |
Varanasi |
Parts of Uttar Pradesh |
| 14 |
Division-XVI |
Bareilly |
Part of Uttar Pradesh & Uttarkhand |
| 15 |
State Unit Office |
Prayagraj |
Part of Uttar Pradesh |
| Western Region |
| 16 |
Western Region |
Jaipur |
Parts of Rajasthan |
| 17 |
Division-XI |
Jodhpur |
Rajasthan |
| 18 |
State Unit Office |
Jodhpur |
Part Rajasthan |
| Mid-Eastern Region |
| 19 |
Mid-Eastern Region |
Patna |
Bihar, Jharkhand |
| 20 |
Division-V |
Ranchi |
Bihar and Jharkhand |
| 21 |
State Unit Office |
Ranchi |
Jharkhand |
| Eastern Region |
| 22 |
Eastern Region |
Kolkata |
West Bengal, Sikkim, U.T. of Andaman & Nicobar Islands |
| 23 |
Division-XV |
Kolkata |
West Bengal, Sikkim, U.T. of Andaman & Nicobar Islands |
| North Eastern Region |
| 24 |
North Eastern Region |
Guwahati |
Assam, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Meghalaya & Tripura |
| 25 |
Division-VII |
Guwahati |
Assam, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Meghalaya & Tripura |
| 26 |
State Unit Office |
Shillong |
Meghalaya |
| 27 |
State Unit Office |
Agartala |
Tripura |
| 28 |
State Unit Office |
Itanagar |
Arunachal Pradesh |
| West Central Region |
| 29 |
West Central Region |
Ahmedabad |
Gujarat, U.T of Daman & Diu and U.T. of Dadra & Nagar Haveli |
| 30 |
Division-I |
Ahmedabad |
Gujarat, Daman & Diu and & U.T. of Dadra & Nagar Haveli |
| North Central Region |
| 31 |
North Central Region |
Bhopal |
Madhya Pradesh |
| 32 |
Division-XII |
Bhopal |
Madhya Pradesh |
| North Central Chhattisgarh Region |
| 33 |
North Central Chhattisgarh Region |
Raipur |
Chhattisgarh |
| 34 |
Division-XIII |
Raipur |
Chhattisgarh |
| South Eastern Region |
| 35 |
South Eastern Region |
Bhubaneswar |
Odisha |
| 36 |
Division-X |
Bhubaneswar |
Odisha |
| Central Region |
| 37 |
Central Region |
Nagar |
Maharashtra |
| 38 |
Division-VI |
Nagpur |
Maharashtra |
| 39 |
State Unit Office |
Pune |
Parts of Maharashtra |
| Southern Region |
| 40 |
Southern Region |
Hyderabad |
Andhra Pradesh & Telangana |
| 41 |
Division-IX |
Hyderabad |
Andhra Pradesh & Telangana |
| 42 |
State Unit Office |
Visakhapatnam |
Parts of Andhra Pradesh |
| South Western Region |
| 43 |
South Western Region |
Bengaluru |
Karnataka & Goa |
| 44 |
Division-XIV |
Bengaluru |
Karnataka, Goa and Parts of Kerala |
| 45 |
State Unit Office |
Belagavi |
Parts of Karnataka and Goa |
| South East Coastal Region |
| 46 |
South East Coastal Region |
Chennai |
Tamil Nadu and U.T. of Puducherry |
| 47 |
Division-IV |
Chennai |
Tamil Nadu, U.T. of Puducherry and Parts of Kerala |
| Kerala Region |
| 48 |
Kerala Region |
Thiruvananthapuram |
Kerala and U.T. of Lakshadweep |
