LUCKNOW/NEW DELHI Sahara Chief Subrata Roy was arrested in Uttar Pradesh Lucknow Feb. 28 after he evaded for two days a nonbailable warrant issued by the Supreme Court for his failure to appear before it in a case of nonrefund of Rs 20,000 crore to investors. Capping a day of dramatic developments, 65year old Roy surrendered before police after calling them to Sahara Shaher.