Four policemen including a senior officer and several villagers were injured in a clash over alleged custodial torture in Uttar Pradesh's Ballia, 350 km from state capital Lucknow. Visuals show several injured policemen and others being treated at a hospital. Panna Rajbhar, who is in his 20s, was on Wednesday called to a police post at Rasra in Ballia district for questioning over a dispute with his extended family, some villagers said.