Hi,
I am able to resolve the replacing the default route of the pppd connection and setting up the default route in ppp configuration file.
1. Add the defaultroute-metric 192.168.1.1 to /etc/ppp/peers/provider (Which is the pppd configuration)
2. Remove replacing the replacedefaultroute in the /etc/ppp/peers/vivo-3g.provider
Thanks for your support
Basavanagouda Ganganagoudar