Hello Aspirant, 

In such a case if branch is not a matter of concern for you then I would suggets you to opt for telecommunications in IIT Kharagpur instead of going for VLSI in NIT Calicut as IIT Kharagpur is a really good ranked college overall and have good ratings in mostly all respects than NIT Calicut. But if VLSI attracts you more, then there is nothing bad for you if you want to opt NIT Calicut. 

So it really depends on you that what YOU really want and decide for one and go for it blindly as both options are really worthy and great choices for you to opt. Hope it helped. 

Best of luck :)