BPSC - Mixed, Miscellaneous and PYQs

12345
1.
Which two countries have ancient rock paintings that are almost identical to those found in Bihar, India?
2.
Who was declared as the first Empress of the British Indian Empire?
3.
In which year, House of Windsor was made the new Imperial Royal Family?
4.
In which year, The Bihar State Milk Cooperative Federation was established?
5.
Which district of Bihar has highest road density in kilometers per 1000 square kms. of area?