India Joins China in Censoring Websites

"On the directions of the government of India, Indian ISPs have started censoring and blocking web properties. This was first noticed by Indian bloggers and upon inquiring with their respective ISPs, the actions are confirmed. Unfortunately, Blogspot and TypePad are the targets till now."

There's an ongoing discussion of the censorship on GoogleGroups. The rediff.com coverage linked above indicates that the blocking is based on a list issued by India's Department of Telecommunications.
This is a list of ISPs already known to be blocking these domains.
India's Department of Telecommunications (DoT) passed an order to ISPs Friday to block several websites. The list is confidential. Indian ISPs have been slowly coming into compliance. SpectraNet, MTNL, Reliance, and as of Monday afternoon, Airtel. State-backed BSNL and VSNL have not started yet but likely will soon.
The known list of blocked domains is *.blogspot.com, *.typepad.com and geocities.com

Source : Slashdot
Related stories : http://www.indianexpress.com/story/8719.html
http://www.boingboing.net/2006/07/17/report_indian_gov_bl.html
http://scobleizer.wordpress.com/2006/07/17/blocking-blogger/