Hello, 

Mainly you should follow up your interest. And as it is not hidden that the IIT is itself a brand in its name. So if you want to start up your own business then you go for textile in IIT because yyou will attract the  investors to invest on you because of the tag you will hold of an iitian.

And if you wan that you start getting high salary jobs just after you complete your graduation and steps out of college, then you should definitely choose cse from igdtuw.

For wider range of curriculum, scopes and opportunities and later choosing your electives  you are interested into,you should then persue textile from iit.

Hope you will choose best for you. 

Good luck!