India plans to launch its MOM spacecraft on October 28, the first day of the launch window which remains open till November 19.
Once launched, MOM would go around the earth for 20-25 days before embarking on a nine month voyage to the red planet.
An Isro official said: "We don't need Nasa DSN support during initial days after the launch as small antennas can track but when it moves further and further away from earth, we need such a support".
There has been no communication from Nasa to Isro saying that it would not support the Indian mission, sources said.
