New Delhi, May 2 -- The Indian Space Research Organisation (ISRO) held technical discussions with Russia's space agency Roscosmos in Moscow on the delivery of semi-cryogenic engines, according to the agency's Annual Report 2025-26.

The annual report said ISRO officials visited Moscow for detailed technical talks, and a draft contract for the engines is currently under approval process.

The semi-cryogenic engine is a key technology for India's future heavy-lift launch vehicles. It uses a combination of refined kerosene and liquid oxygen, offering higher efficiency and thrust compared to existing systems.

The development and induction of such engines are expected to strengthen India's launch capabilities for heavier payloads and deep spa...