The trouble started when villagers were protesting against land acquisition for constructing an educational institution in the area, police said adding that they pulled down the boundary wall at the site.
When police arrived, villagers pelted stones at them injuring a few policemen including Superintendent of Police (Ranchi Rural) A V Minz. He suffered head injury which required one stitch.
To control the situation, police used lathis injuring some villagers.
