Mumbai, July 16 -- Chennai Petroleum Corporation Ltd, ABB India Ltd, Himadri Speciality Chemical Ltd and Genus Power Infrastructures Ltd are among the other gainers in the BSE's 'A' group today, 16 July 2026.Mangalore Refinery And Petrochemicals Ltd spiked 9.26% to Rs 172.3 at 11:46 IST. The stock was the biggest gainer in the BSE's 'A' group. On the BSE, 71.07 lakh shares were traded on the counter so far as against the average daily volumes of 4.29 lakh shares in the past one month. Chennai Petroleum Corporation Ltd surged 8.69% to Rs 1257.95. The stock was the second biggest gainer in 'A' group. On the BSE, 4.56 lakh shares were traded on the counter so far as against the average daily volumes of 72600 shares in the past one month. ABB...