yes, Please Find the attachment of my MPLS Router & VPN Configuration on ASA.

Please let us if you want any thing more

You are seeing this behavior because this is exactly how your ASA is configured:

route MPLS 0.0.0.0 0.0.0.0 100.31.100.2 1 track 1

route outside 0.0.0.0 0.0.0.0 121.241.164.129 10 track 1

The second default router has a higher AD of 10 and it will not be utilized until the first one goes down (MPLS). You cannot have two equal cost default routes on the ASA pointing towards two different interfaces. Have a look at this link to have a better understanding of these commands:

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00806e880b.shtml

To overcome this you can add specific routes exiting the outside interface like this:

route outside 55.55.55.0 255.255.255.0 121.241.164.129

Also dude consider this sincere advice, be careful when you post configurations on public forums, lots of meaningful information is present in your configuration scripts.

Regards

Farrukh

Thank you very much for your suggestion, from next time onwards i will follow that.

The link that you are provided is very use full for me.

once i will do the changes i will let you now.