When India took its first tentative steps into space science in the early 1960s, the nation was wrestling with severe domestic challenges, including food security and basic literacy. Back then, assembling a rudimentary rocket required sourcing components from various corners of the globe. Decades later, that same country routinely places foreign satellites into orbit on a commercial footing. Speaking at the Indian Institute of Technology Delhi during a lecture titled ‘India’s Space Programme: Challenges and the Way Forward’, ISRO Chairman and Secretary of the Department of Space, Dr. V. Narayanan, narrated this transformative trajectory, outlining how technical denials spurred self-reliance and paved the road toward orbital stations and crewed lunar exploration.
From Thumba's Foreign Parts to Indigenous Mastery
Dr. Narayanan traced the origin of the national space effort back to 1962, a period marked by acute resource constraints across the country. In November 1963, India launched its first sounding rocket from Thumba in Kerala, an endeavor made possible only by stitching together instruments and equipment imported from multiple foreign nations. Over the following decades, Indian scientists deliberately expanded their technological competence. That persistent effort steadily evolved into full indigenous mastery, enabling the country not only to design, fabricate, and launch its own satellites into precise orbits but also to run a competitive commercial launch service for international customers.
Overcoming Technology Denials to Build Cryogenic Engines
A central milestone in India's ascent as a space power was the creation of indigenous cryogenic propulsion systems. Dr. Narayanan recounted how, in the early 1990s, foreign nations refused to supply India with critical cryogenic technology. Faced with this embargo, space scientists resolved to turn the adversity into self-reliance. As Dr. Narayanan put it, "when the world refused to give us this technology, we decided to develop it ourselves." Rather than stalling the program, Indian engineers pursued home-grown research, ultimately succeeding in developing three complete cryogenic propulsion systems entirely on their own, which now power the country's most capable launch vehicles.
Milestones on the Moon, Mars, and in Orbital Docking
Reflecting on key scientific benchmarks, Dr. Narayanan termed August 23, 2023, a historic day for the country. On that date, Chandrayaan-3 achieved a soft landing near the south polar region of the Moon. This milestone made India the fourth country to execute a controlled soft landing on the lunar surface and the very first to touch down near the lunar south pole. Dr. Narayanan also highlighted India's successful space docking experiment, which established the country as only the fourth worldwide to master the delicate maneuver of joining two spacecraft together in orbit. These accomplishments sit alongside previous breakthroughs, such as detecting water molecules on the Moon and entering Martian orbit on the inaugural attempt.
The Next Frontiers: Gaganyaan, Space Station, and Crewed Moon Flight
Looking ahead, Dr. Narayanan presented a structured timetable for long-term orbital presence and planetary exploration. Under the human spaceflight program, teams are actively working toward the first uncrewed test flight to validate the hardware needed to carry people safely into space. Concurrently, the government has cleared the initial module of the Bharatiya Antariksh Station, targeting an orbital launch by 2028, with full multi-module assembly scheduled for completion by 2035. Lunar ambitions will advance with Chandrayaan-4, designed to collect and return physical lunar samples to Earth, followed by Chandrayaan-5 and a proposed scientific voyage to Venus. The long-term vision culminates in landing an Indian astronaut on the Moon by the year 2040.
