Riding on the Bt Cotton wave, India is leading a biotech revolution in the world. If the trend in countries like India and China are any indication, Asia will be the leader in biotech cultivation in the next 10 years. According to a report from International Service for the Acquisition of Agri-biotech Applications (ISAAA), India replaced China as the world’s top grower of genetically modified (GM) cotton (Bt Cotton) in 2006. [...] The success story of Bt Cotton turns into a tragedy in Warangal district of Andhra Pradesh. For farmers in this district - a major cotton producing area - Bt Cotton has brought in doom.