List of stocks gained during last 30 days period. Bandhan Bank, Siemens, BPCL, Hindpetro and Berger paint gained more than 25%. Eichermot, Gicre, Nmdc, Colpal and idea gained 18%. Ashokley, Britannia, ioc, asianpaint and Bajfinance surged 15% during last 1 month period in the Nifty 100 stocks index.