just to add something, Nagendra's answer was great.
Sourav, what you are describing is the unsolicited downstream LDP method. that works for the "global" ips (non-vrf) when you are using LDP (as an example the MPLS core routes, loopbacks and so)
Re...
Hello Vinayaka, based on your description, I think that you are using vpnv4.
As you were saying, if you set different RDs for the VRFs on each PE, they are going to generate differente vpnv4 /96 prefixes. The RR doesn't know about VRFs, he will just...