See pursuing an MSc from an IIT will obviously add more value to your career compared to that of DCA course. See if you are interested in programing also then you can obviously pursue the course of MSc Mathematics and Computing which has some really good prospect ahead and if you can pursue the field then not only you can go for research but you can also go for coding jobs as well as some interesting parts such as Quantum Computing, Machine Learning, AI work profiles. So if you ask me the best career choice you can have then I would recommend you to prepare for IIT JAM.

To know more about IIT JAM visit the link below:

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

I hope this answer helps. All the very best for your future endeavors!