It’s hard time for Blackberry in India. Some Indian security agencies have asked RIM (Research In Motion, Blackberry maker) to provide algorithm to decrypt messages. If they don’t, It may lead to termination of Blackberry services in India! RIM is in touch with Indian government to resolve this issue.
Government has some security concerns to be addressed by RIM. RIM is providing Blackberry services around 130 countries in compliance with regulatory requirements of governments. But no other government has asked them to provide their algorithms. Their algorithm is the big plus to them, & they might not want to share it.
Blackberry is a very powerful service offering email & internet services on the go. It’s been one of the best business phones available. Banning it might cause lot of loss to India itself. Hope they will come to some sort of agreements with government to continue services in India.
More detailed post about the issue is at Business Standards