Mumbai, July 21 -- Mastek Ltd, KIOCL Ltd, Tilaknagar Industries Ltd and K.P. Energy Ltd are among the other gainers in the BSE's 'A' group today, 21 July 2025.Paradeep Phosphates Ltd spiked 11.27% to Rs 190.5 at 11:45 IST. The stock was the biggest gainer in the BSE's 'A' group. On the BSE, 9.89 lakh shares were traded on the counter so far as against the average daily volumes of 1.66 lakh shares in the past one month. Mastek Ltd surged 9.83% to Rs 2736.6. The stock was the second biggest gainer in 'A' group. On the BSE, 1.38 lakh shares were traded on the counter so far as against the average daily volumes of 3896 shares in the past one month. KIOCL Ltd soared 6.85% to Rs 310.6. The stock was the third biggest gainer in 'A' group. On the...