'India will not adhere to NPT, until it is biased'

India's junior Foreign Minister Shashi Tharoor said that India will not adhere to any pact such as Nuclear Proliferation Treaty and will not sign it as long as it is discriminatory. He said this on the occasion of the release of the book Shadows Across The Playing Field - 60 Years of India-Pakistan Cricket authored by him and Shaharyar Khan of Pakistan at New Delhi.