None too surprising
The Indian government has been getting twitchy fingers about comms surveillance for a long time, but like everything governmental in India it takes its time to work up a full head of steam but changes tend to be sweeping. The attacks on Mumbai and the Parliament are presumably the main public justification, but the always touchy subject of 'offending' political, social or religious sensibilities is probably the real driving force - taking a hammer to someone's knuckles over some perceived affront to a deity/minorities/women/a famous politician/the RSS is virtually a national pastime - just ask poor old M.F Husain; a couple of iffy sketches and you get to live your life in exile, with death threats couched in terms of 'communal anger'. A look at the Tehelka case also sheds a good deal of light on what they're likely to use this for.
India went to war with Blackberry a couple of years ago over access to BES data, but they were already warming up 10 years ago with government run ISPs like BSNL blocking protocols (usually VOIP) left right and centre for reasons that wobbled erratically between national security and commercial protectionism. And of course Tehelka.
The one comforting thing is that if the UK or Australia's politicians are total numpties when it comes to understanding tech and the limitations of filtering/surveillance, India's - with entirely honourable exceptions - are a class apart. The chances of actually getting any of this to work in a meaningful way are probably close to zero, although a few Twitter using, lesser known M.F. Husain wannabe's will probably have their sensitive digits introduced to Impact Therapy in the name of that most delicate of flowers, communal harmony, and it's odd bedfellow, political corruption.