Hello

BTech in IT has a lot of scope inIndia presently. Infact IT and CS are the most in demand programmes (in Engineering) after which comes ECE.

After BTeh in IT you can join any firm or become a :

Software Engineer

Programmer

App or Website Developer

System Analyst and much more.

I have a few friends who had bioogy in best 3 but still chose IT over medical as they had maths as a subject in 12th too and they are doing just fine. Coding is not difficult if you have interest and a knack for it. All my friend swho are in CS and IT find coding relatively easy but it depends from person to person.

If you join IT and find coding difficult the you can go for online courses on NPTEL (professors from IIT and other prestigious institutes teach you for free there).