Verizon Blackberry Z10 - GSM is working only on idea & no other operator

[SmartSamrat 109]

Hi

all RimGuru's,

i have verizon blackberry z10 having internet connecting issue.

my idea postpaid working fine with BB Z10 and also working fine with WIFI,

but all other operator is not gonna connect to internet ??

is there any solution for it?

when i insert another sim like vodafone reliance airtel [always making correct apn setting ] still no blackberry symbol is alive next to range.

Help Needed.