"In India, we have agreements with four large manufacturers. ...India will produce about 300 million doses or more of the vaccine for us next year," he was quoted as saying to Rossiya 24 TV channel by TASS news agency on Thursday.
"Yes, December. The launch vehicle is ready," Xinhua news agency quoted Rogozin as saying in a tweet on Saturday confirming that the launch had been postponed to December 11.
Russia's own orbital station will consist of three to seven modules unmanned or with a crew of two to four people, Xinhua news agency quoted Vladimir Solovyov, first deputy general designer of Energia, as saying on Thursday.
The Trump administration has already left a landmark Cold War treaty that restricted intermediate-range nuclear forces, saying that Russia was in violation.