Mumbai, May 8 -- Avalon Technologies Ltd, Thermax Ltd, Nuvama Wealth Management Ltd and Mangalore Refinery And Petrochemicals Ltd are among the other gainers in the BSE's 'A' group today, 08 May 2026.Firstsource Solutions Ltd surged 14.58% to Rs 269.55 at 11:46 IST. The stock was the biggest gainer in the BSE's 'A' group. On the BSE, 19.68 lakh shares were traded on the counter so far as against the average daily volumes of 2.77 lakh shares in the past one month. Avalon Technologies Ltd soared 12.75% to Rs 1414.95. The stock was the second biggest gainer in 'A' group. On the BSE, 1.33 lakh shares were traded on the counter so far as against the average daily volumes of 21325 shares in the past one month. Thermax Ltd spiked 12.38% to Rs 47...