Sri Buto Krishto Roy named the college after his departed father Late Prasanna Kr Roy. It was Sri Bijoli Kant Roy, who, after the demise of his father, Buto Kristo Roy, took the onus of developing the college with all sincerity and dedication with unprecedented, peerless zeal to propel the college to the dizzy heights of glory and glamour. It was under his patronage that P.K.Roy College Touched new heights and gained new dimensions. The College gained its constituent status in the year 1977 under Ranchi Unversity, Ranchi. Since, then, it has been on the spree of producing gems and laurels in academic arena despite all bottle necks. The College caters to academic need of the students from U.G with Honors in almost all subjects of Arts , Commerce and Science to P.G students in all the three faculties. Today, it has got the honors of becoming prominent P.G. College in V.B.U, University, Self financed professional courses like Bio-Technology, Environmental Science ,Human rights, crisis & conflict Management etc are also being taught in the College.
The College Library is meant for the staff and students for the college. There is a large number of books covering Arts., Science and Commerce subjects. There are two sections in the library.