Patna: Bihar CM Nitish Kumar, who launched a state-wide campaign to end social evils like dowry and child marriage recently, today received a shot in the arm when a former principal returned the dowry which he had got for his son's marriage. Harindra Kumar Singh, a former principal and a resident of Bhojpur district, today met the CM at the latter's official residence and said he was "inspired" by Kumar's appeal to shun dowry while solemnising marriages, a government release said. Singh said that he was "inspired" by the CM's appeal made on October 4 during a Mahayajna at Ara, the district headquarters town of Bhojpur.