Is there any platform in TCS where I can find available openings in projects as per my skill set, I am currently in bench (RMG)

You can use platforms in Ultimatix called knome by posting your requirements and does search your requirements through ExOps(Exciting Opportunities),just search them should get a response from any of those portals once your done by using them for the same

I believe in Ultimatix exciting opportunities are there, you go there and search it as per your need

In ultimatix

No Platform but you can put a post on Knome telling you are available for work and check if someone contacts you. Also you can post it in common groups as well.

Can anyone suggest how can I get to know the openings in tcs for RMG people

I want to know is there any projects with skill set pega decisiong available in tcs to take