Eleven stocks including Balrampur Chini, Bandhan Bank, and GMR Airports are in F&O trade ban due to MWPL over 95% and OI data reported by Trendlyne. GNFC, HAL, Hindustan Copper, The India Cements, PEL, RBL Bank, SAIL, Vedanta included. Index traders unaffected. Ban reverses if OI falls below 80%. MWPL limits apply. Chambal Fertilizers exited.