Chk GPRS balance

For Tamil Nadu,
Type DATA2G to 53733 (for 2G)
Type DATA3G (for 3G)
-
For UP,
Dial *123*6#
-
For Kolkata,
Dial *123*10# to know free 3G & 2G.
-
For West Zone (Gujarat, Maharashtra etc),
Dial *112#
-
For Kerala,
Dial *124*1#
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