which computer course will be best to get a job in ISRO

Hi Suhani, If you are looking to get a job option fro ISRO, and wish to pursue something in computers then I would advise you to opt for a B.E./ B.tech in this field. There are many instituets in India offering related courses in the mentioned degree courses, you may also refer to the following lin

The question arises, whether you prefer to serve at the Headquarter of ISRO or in the Satellite Centre/ Job specification may be different for the jobs at the place you want to serve.