Don Bosco Institute Kokar was initiated during the early 80s during which the work was monitored from Don Bosco Hatia; however, it was officially established in 1987. The founding father was Rev. Fr. Guido Colossi, SDB, a great missionary from Cassarsa, Italy. The technical school, the Salesian residence cum hostel for ITI boys, the parish residence, and the parish church were constructed simultaneously. The parish church was blessed by his Grace Telesphor P. Toppo DD, then Archbishop of Ranchi and now a retired cardinal, in 1988 the death centenary year of our father and founder St. John Bosco. During the same period another crucial step was taken by starting a village Hindi medium school 2 km eastward from the base, for the marginalized, the school is known as Don Bosco School Gurgaon. It is very much of a charitable work for the villagers who cannot afford to pay fees and educate their children in the city schools of Ranchi. Now it has reached class X. Another English medium school was started in 1998, a dream work of Fr. Guido, initiated by Rev. Fr. UP. Sebastian SDB, the parish priest of the time.