As per data by CERT-in (Indian Computer Emergency Response System), a total of 1981 websites were hacked in India (in the first 3 months of 2010), out of which 64% had a .in TLD.
There was a spike in the number of defacements – 570 websites (in Jan 2010), 510 websites in Feb and 901 websites in March (source).
Recently, TCS’s website was hacked and it took the team almost 5-6 hours to restore the website. And a few days back, Chinese hackers infiltrated Indian government computers and were able to access sensitive information.
Few of wordpress sites have been hacked recently and if you are on wordpress [esp on a .in domain], read this guide to protect your wordpress installation.