PWD in Bihar

I want know how P.W.D (Public Works Dept) Bihar come into existence and brief information about it. Can you please provide me?

[Pathak]

Road Construction, Building Construction and Rural Engineering Organization were all under the Public Works Dept. (PWD) before 1982. In the administrative view, Public Works Dept. was split into 3 different departments named: Road Construction Dept., Building Construction Dept. and Rural Engineering Organization Dept. by the Cabinet Secretariat and Co-ordination Department's Memorandum No. CS-2-M2-10157/80-878, Patna dated 16th March, 1982.
In this way, the Building Construction Department came into existence in the year 1982. Its head-quarter is located at Visheshwaraiya Bhawan, Jawahar Lal Nehru Marg, Bailey Road, Patna - 800 015