Malunja Bk is a village in Gangapur tehsil in district of Aurangabad, Bihar, India. As per the data provided by Census of India in 2011, total population of Malunja Bk was 922 which includes 481 males and 441 females. Malunja Bk covers 366 ha area. Pincode of Malunja Bk is N/A.