Hello Abhisek, hope you are doing well!

Yes you can go for the MCA course being from the commerce stream but only after completing BCA. Because MCA is a postgraduate course. Getting admission into MCA directly after 12th commerce isn't possible due to the eligibility criteria required by various colleges for MCA.

Eligibility Criteria for pursuing MCA are:- 60% aggregate marks in BCA or B. Sc (Computer Science) or B. Sc (Information Technology) or any Graduation with Computer Science as a subject for three years or Mathematics or Statistics or Business Maths or Business Statistics or QT as one of the subject at Graduation or 10+2 level)

Read the article below to get a list of government colleges offering BCA and MCA in India:-

https://it.careers360.com/colleges/list-of-government-bca-mca-colleges-in-india

Hope this helps:)