Good knowledge in Mobile Internet and any issue related to any mobile services
Good knowledge in medicine
Ravinder gulia's Problem Solving Experience:
A person is not able to connect GPRS due to incomplete settings in his phone, i told him about to do manuall settings and guide him for the same, his problem is resolved in just two minutes while he is suffering for this problem from the last one month.
A person is not able to send SMS from his mobile while having sufficient balance in his account,then i guide him for change some settings in his phone and right after that his problem is resolved and he is able to send SMS.