Civil Aviation, Pipelines and Telecommunication
Civil aviation
- India is the third largest domestic aviation market in the world.
- The first commercial flight was in 1911 (Allahabad to Naini) and Tata Airlines (1932) started by J. R. D. Tata, which became Air India. Air India was nationalised in 1953 and privatised to the Tata Group in 2022.
- Airports Authority of India (AAI, 1995); DGCA regulates; Ministry of Civil Aviation.
- Major international airports: Indira Gandhi (Delhi), Chhatrapati Shivaji Maharaj (Mumbai), Kempegowda (Bengaluru), Rajiv Gandhi (Hyderabad), Netaji Subhas Chandra Bose (Kolkata), Chennai, Cochin (first fully solar), Sardar Vallabhbhai Patel (Ahmedabad), Sheikh ul-Alam (Srinagar), Jewar (Noida International Airport; under construction/opening) and Navi Mumbai.
- UDAN scheme (2016): regional connectivity, "Ude Desh ka Aam Nagrik".
- Digi Yatra.
- Busiest airport: Delhi (IGI).
- Open skies, FDI up to 100 percent in non-scheduled airlines.
Pipelines
| Pipeline | Notes |
|---|---|
| Salaya-Mathura | Crude oil |
| Mundra-Delhi, Mumbai-Pune | Product |
| HBJ (Hazira-Bijaipur-Jagdishpur) | Gas, 1,700 km |
| Jamnagar-Loni | LPG |
| Paradip-Haldia-Barauni | Crude |
| Urja Ganga | Pradhan Mantri Urja Ganga gas pipeline for Varanasi to Kolkata, Odisha, Jharkhand |
| India-Bangladesh Friendship Pipeline | Siliguri-Parbatipur diesel |
| TAPI | Turkmenistan-Afghanistan-Pakistan-India gas pipeline, a planned pipeline |
- Oil India and GAIL are the main pipeline operators. Indian Oil has the longest product pipelines.
- National Gas Grid, one nation one gas grid.
Telecommunication
- India has the second largest telecom market and the second largest internet user base; mobile subscribers exceed 1.15 billion (TRAI, 2025).
- Landline to mobile: 1995 first mobile call from Kolkata; BSNL (2000); Jio (2016); 5G launched in October 2022.
- TRAI (1997), DoT; the Telecommunications Act 2023 replaced the Indian Telegraph Act 1885.
- Postal system: India Post is the largest postal network in the world; PIN code (1972, six digits) introduced by Shriram Bhikaji Velankar. The first PIN digit shows the region, the second the sub-region, the third the sorting district, the last three the post office.
- Satellites: INSAT, GSAT, IRNSS (NavIC), ISRO (HQ Bengaluru); Doordarshan, All India Radio.
- BharatNet: rural broadband; Digital India (2015); UPI (2016).
- Submarine cable landing stations: Mumbai, Chennai, Kochi, Visakhapatnam.
Tourism and trade routes
- Tourism accounts for about 5 percent of GDP; UDAN, Swadesh Darshan, PRASAD.
- Silk Road, Spice route, Grand Trunk Road (Sher Shah Suri; Kabul to Chittagong) - ancient and medieval corridors.
Keep practising
Notes are only half the work. Test yourself with questions and discuss doubts with other aspirants.
Prepared for exam revision from NCERT, standard geography textbooks, the Census of India 2011, the India State of Forest Report, IMD, Ministry of Agriculture and other official sources. Maps are schematic teaching maps, not Survey of India maps, and zone boundaries are approximate. Figures such as production, capacity, counts of parks and ports, and census status change, so check the latest official source before relying on them. Found a mistake? Tell us.