Market regulator SEBI has found the Bombay Stock Exchange guilty of lapses while conducting 6,000 crore rupees share sale of NMDC. In his order issued from Mumbai today, SEBI's whole-time member Prashant Saran has censured the BSE for its conduct. The regulator has directed BSE to be careful and cautious in its dealings in the securities market and comply with all the legal requirements that govern its functions as a stock exchange.