Hello Pinki
It is possible to apply load balancing in BGP. BGP will not perform Equal Cost Multi-Path (ECMP) routing by default but it can be configured to do so. Specifically, you can use BGP multipath load sharing. You can see how to configure eBGP and iBGP to use more than one path in the following lesson:
Additionally, it is possible for BGP to advertise multiple paths for the same prefix allowing traffic to take various paths to the destination. This is called BGP Additional Paths feature and you can find out more about it at this lesson:
I hope this has been helpful!
Laz