Ramesh Shukla, 62, a resident of Vishnupuri village, had retired from the post of principal two years ago but used to teach students out of his passion for teaching.
Yesterday evening, when he was returning from the school on his bicycle, some unidentified assailants shot him. The bullets pierced his back and waist.
He was rushed to a nearby hospital where he was declared dead on arrival.
The police are suspecting a family feud behind the killing.