| IAAI |
International Airport Authority of India |
| IAEA |
International Atomic Energy Agency |
| IBRD |
International Bank for Reconstruction and Development |
| ICAO |
International Civil Aviation Organisation |
| ICAR |
Indian Council of Agricultural Research |
| ICMR |
Indian Council of Medical Research |
| ICRC |
International Committee of the Red Cross |
| IDBI |
Industrial Development Bank of India |
| IMA |
Indian Military Academy |
| IHO |
International Maritime Organisation |
| INMAS |
Institute of Nuclear Medicines and Allied Sciences |
| INSAS |
Indian Small Arms System |
| INSAT |
Indian National Satellite |
| INTERPOL |
International Police Organisation |
| IPCC |
Intergovernmental Panel on Climate Change |
| IRBM |
Intermediate Range Ballistic Missile |
| IRS |
Indian Remote Sensing Satellite |
| ISCS |
Integrated Smart Card System |
| ISRO |
Indian Space Research Organisation |
| ITU |
International Telecommunication Union |
