Hello Sameer,

if you implement VRFs you have built in segregation

It has the capability to segregate traffic of different customers and to support address overlapping but:

there is no support of MPLS forwarding so there are only VRF access links both to the customer both to the real MPLS PE.

There is no support/need of the MP-BGP for address-family Vpnv4.

So the only issue is if you need to make the different VRFs to communicate but they cannot talk and so you save to configure complex ACLs (that need to be updated)

Hope to help

Giuseppe