New Delhi: Congress MP Shashi Tharoor on Sunday strongly backed Prime Minister Narendra Modi's gesture of gifting a copy of the Bhagavad Gita to Russian President Vladimir Putin, stressing that the move was not an effort to convert the Russian leader to Hinduism but a reflection of India's 'civilisational heritage.'The exchange of gifts took place during Putin's visit to New Delhi from December 4 to 6. Modi presented Putin with a Russian translation of the Srimad Bhagavad Gita, which is part of