CBI today moved the Supreme Court seeking cancellation of the bail granted bail to B Ramalinga Raju, tainted founder of Satyam Computers, by the Andhra Pradesh High Court. The probe agency has challenged the High Court decision contending that Raju may influence the witnesses majority of whom are his former employees. The High Court on August 18 had allowed Raju's bail on the ground that all other accused in the case including his brother Rama Raju, former Satyam CFO V Srinivas and three others were granted bail by it. The CBI contended that there cannot be any parity between Raju and others as far as the seriousness of the case is concerned. Raju, involved in 14,000 crore rupees scam, was arrested on January 9 last year and is currently undergoing treatment for liver infection in the state-run Nizam Institute of Medical Sciences in Hyderabad.