The main reason of Partition of Bengal was _____?

The main reason of Partition of Bengal was _____?

بنگال کی تقسیم کی بنیادی وجہ _____ تھی؟
Explanation

The main reason for the Partition of Bengal in 1905 was to improve administrative efficiency.

Partition of Bengal was annulled by Lord Hardinge 

It was officially announced on 19 July 1905

This decision was made in response to widespread protests and riots from the Swadeshi movement, which opposed the 1905 partition.

The partition of Bengal was canceled by Lord Hardinge II.