Hello Saloni,

IIT JAM also known as Joint Admission Test for M.Sc. programs is an entrance exam that is conducted for various M.Sc. and integrated M.Sc. programs offered by IITs and IISC Bangalore. The test is conducted annually in the offline mode. The applications have to be filled in the online mode through the official website.

As for your question, IIT JAM does not offer admissions to MCA courses as the IITs do not offer MCA. You can give NIMCET for admission to MCA programs in NITs. 

For more information, follow the below link:

Https://university.careers360.com/exams/jam