Sir why we require RD and RT in mpls when routing table is different by configuring VRF?

RD stands for Route distinguisher.It is use to make a route unique in VPNV4 enviornment.

Route target value is used to import and export routes in VPNV4.We can import routes from both same and different VRF.

Route target actually defines into which VRF routing table recieving PE will install the route.

If you want practical example let me know :)