Dear Shubham,
You should opt for science in 11th. Even if your interest fluctuate after 12th you can switch over to commerce and arts branch. But you cannot do the other way round. Make your basic clear in PCM/PCB. After that you have a lot of scope depending your intrest:
And science is lot easier as compared to commerce and arts. The competition is also less in science stream as there is a lots of scope. But the scope to completion ratio of commerce and arts department is very low as compared to science.
I think it's helpful for you
Best of luck.
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