If you are also using mtnl broadband than you need to use two pvc which will go like this
ENCAPSULATION
pvc 0
vpi 0
vci 32
isp pppoe llc
username: phone numer
Password: ca number
mtu 1492
dhcp lan sever will be disabled
then in pvc1
vpi 1
vci 33
brigded mode
1483 ip llc
adsl setttings will go like this
adsl mode :g.dmt
adsl type :annex a