Commercial vehicles could change space relations a lot,

The envoy is former NASA Admin. Gen. Charles Bolden.

Current NASA Admin. Jim Bridenstine is also working with ISRO on astronaut training, and vehicle design for their domestic crew program.

http://timesofindia.indiatimes.com/a...w/68325786.cms

ISRO with NASA's help can send astronauts to ISS: US space envoy
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ISRO and NASA can work out a joint mission to ISS for bio-medical research. If both agencies agree on the mission and work out the cost-sharing deal for the programme, Nasa will contract a space vehicle [Crew Dragon] from SpaceX for the mission. The joint collaboration is possible.
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