Mumbai, April 21 -- PNB Housing Finance Ltd, Ramkrishna Forgings Ltd, Five-Star Business Finance Ltd, OneSource Specialty Pharma Ltd are among the other stocks to see a surge in volumes on NSE today, 21 April 2026.Lemon Tree Hotels Ltd witnessed volume of 1010.41 lakh shares by 14:14 IST on NSE, a 22.82 times surge over two-week average daily volume of 44.28 lakh shares. The stock increased 8.33% to Rs.122.55. Volumes stood at 50.42 lakh shares in the last session.PNB Housing Finance Ltd registered volume of 185.48 lakh shares by 14:14 IST on NSE, a 14.8 fold spurt over two-week average daily volume of 12.53 lakh shares. The stock rose 8.04% to Rs.979.65. Volumes stood at 15.26 lakh shares in the last session.Ramkrishna Forgings Ltd recor...