The Indian astronauts who will be travelling to space on the Indian Space Research Organisation’s (Isro) Gaganyaan spacecraft will likely wear Russian-made spacesuits, despite speculation that the indigenously made Intra Vehicular Activity (IVA) suits may be used.

Documents reviewed by HT show that while the space agency has nearly completed work on its IVA suits, developed by the Vikram Sarabhai Space, the Gaganyaan mission — which is India’s first manned spaceflight — will see Isro sticking to Plan A of suiting up the three Indian astronauts in Russian spacesuits.

“Considering the programmatic requirements and to doubly ensure the crew safety, it is planned to induct Russian space suits for the (Gaganyaan) mission,” one of the documents said.

Isro chairman S Somanath said earlier this month that 2024 will be the “year for Gaganyaan”. The coming months will see several rounds of tests and technology demonstrations for the mission, which aims to demonstrate Isro’s human spaceflight capability by launching a crew of three members to an orbit of 400km for a three-day mission and bringing them back safely.

Leading up to the actual manned mission, the space agency will be conducting several rounds of tests. After the TV-D1 test flight demonstration, which was carried out in October last year, the space agency will also be carrying out a test flight with a robot, ‘Vyomitra’, a humanoid astronaut, and an unmanned flight before the manned mission, possibly scheduled for 2025, according to officials from the department of space.

Last year, the space agency completed some key trials related to the mission.

Isro scientists confirmed that the three astronaut designates have already been to Russia for their suit trials.