03-08-2012 12:40 PM
Hello shreyaashat and welcome to the BlackBerry® Support Community Forums.
Thanks for your question.
Do you have an active BlackBerry® Internet Service data plan with your mobile network provider? If not, you would need to use Wi-Fi for mobile browsing.
If you are unsure if you subscribe to a data plan it would be recommended you ring your mobile network provider and inquire with them on plan details.
Hope this answers your question.