SRM Institute of Science and Technology, Chennai - Ghaziabad Campus

CSE deals with all the aspects which are related to computer science and engineering, where as CSE specialization involves mostly about your specialization. Let us consider if you choose CSE with data analytics, then you will learn purely about it and related this in computer science. Let me tell you one thing do not go for specialization, because you will just get into it mostly without knowing what you will learn. 

You may get admission in IT branch with your rank in this college.

Yes, you can easily get admission in this college at this rank in the first round of the counselling itself.

No, it is not necessary. Though, it will add an advantage to those students who have opted for commerce with Maths.

Yes, it does provide good placement. This year also more than 500+ companies visited out of which more than 75% were local south companies.

The overall fee of engineering in B.Tech CSE will be 8.1 Lacs and
per semester your fee will be 1 lakh and 10,000 will be a registration fee which you have to pay only at the time of registration. For details, go through the link.

Hii
First of all you have to give me the degree you wants to pursue .my answer will be based on assumptuons that you wants to pursue b.tech.so i have no idea about other colleges other than Srm you can use Shiksha comparison tool to compare. But in Srm university the placement is centralization so if you are bright student then you can get the admission easily.so it depends on your performance .