Airtel — data on roaming not working

Address:

Visakhapatnam, Andhra Pradesh, 530046

I recharged my airtel number [protected] with 399 pack, its kerala sim. When i came to andhra data is not coming even if i connect to data roaming services, please resolve my issues. When ever i come to andhra i am not able to use he internet on roaming is that airtels fault or the sims fault. Its not the phone fault because i used idea also on data roaming but only for airtel its not working, so i hope this problem would be resolved quickly.