In which field terminology 'Rai' was connected during Sher Shah's period?

Which of the following Mughal period canals, was constructed by restoring the Rajabwah of Firuz Shah?

Court Language during Mughal period was –

Which among the following ports was called Babul Mecca (Gate of Mecca) during the Mughal Period?

Which one of the following is a monument constructed by Shershah?

The meaning of word Bantai during Medieval period was?