Its a state-owned telecommunication enterprise in India. BSNL is the third largest cellular service provider, with over 66.88 million customers as of June 2010 and the largest land line telephone provider in India.
The hackers who call themselves “Urdu hackers” claims to be from Pakistan (via Email). The private data from the website have been downloaded – claims the group.
The Punjab BSNL website shows a “Down for maintenance” status at the moment. The above video was emailed to me, which confirms the groups responsibility.
More updates soon.