First of all thanks to all for ur valuable replies.
I did connect to wifi & able to browse thro it.
But when i browse using the browser(hotspot-browser) the connection is not stable. out of 5 mins, 3 mins i could able to connect and rest i get message as "The server is busy contact your service provider". Is it the problem wit the wi-fi network or the phone ?
Also, i probably hope the problem is without checking Allow inter-access point handover option in saved wi-fi network. Is it so ?
Please suggest !!