Question

A ditch was dug in Calcutta to prevent which attack​

Answer 1

Answer:

Maratha Ditch (archaic spelling: Mahratta Ditch) was a three-mile long moat excavated around Calcutta (now known as Kolkata) in Bengal, India, in 1742, as a protection against possible attacks by marauding Bargis, as the Marathas were known locally. The Bargis, however, never came to the city. Later, the ditch proved to be useless when the Nawab of Bengal, Siraj ud-Daulah, came and ransacked the British settlement in 1756.[1] The ditch was never completely built. It was mostly filled up in 1799 to build the Circular Road and the remainder was filled up in 1892–93. The area bound by the ditch was considered to be the original town of Kolkata.[2]