Karnataka Minister B Nagendra on Thursday tendered resignation following allegations of involvement in multi-crore illegal money transfer case linked to Valmiki Corporation scam. Seeking to mount pressure on the Congress government, the opposition BJP staged a protest march from 'Vidhana Soudha' to Raj Bhavan and petitioned Governor Thaawarchand Gehlot demanding the Scheduled Tribes Welfare Minister's resignation over what it called …