51. The Police Training College was first established in the year 1948 at

(A) Salonibari
(B) Naharkatia
(C) Nazira
(D) Gauripur

52. The Rain Forest Research Institute in Assam is located in

(A) Diphu
(B) Dhubri
(C) Dibrugarh
(D) Jorhat

53. Tungkhungia Buranji is written by

(A) Golap Chandra Barua
(B) Kasinath Tamuli Phukan
(C) Hemchandra Goswami
(D) Srinath Duara ‎Barbarua

54. Name the Ahom king who married the Koch princess Mangola Devi

(A) Udayaditya Singha
(B) Chakradhwaj Singha
(C) Jayadhwaj Singha
(D) Pratap Singha

55. When was Lachit Borphukan born

(A) 1618
(B) 1622
(C) 1626
(D) 1628