When you arrive in CDG you will either de-plane at a real gate or be bussed to the terminal, Once you get to the terminal you will need to clear security again before boarding. The signage is good. Depending on which gate you depart from you may need to be bussed to the plane. But you should not have any issues provided you are not too late.

I did this trip from DTW and ATL monthly between August and December and it usually took between 30 and 45 minutes from plane to plane... I hope you are in business class because you are first off the plane and CDG has a dedicated security lane (Access 1) for those with BC seats, and it really speeds things up.

Enjoy BLR... It is a real treat.