Rupesh,
Could you please provide more information on the topology. Do you have another router connected to Router A & B and you want to load balance from that other router? Are all these routers in the same AS or different ASes?
Regards
Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México