
1) Former country in Asia
Found on
https://www.crosswordclues.com/clue/east-pakistan

In 1947, the region of Bengal under the British Empire was divided into East and West Bengal that separated the eastern areas with a Muslim majority from the western areas with a Hindu majority. The partition of Bengal saw the mainstream revival of Hindu–Muslim riots that drove both Bengali Muslims and Hindus further apart, leading to more unres...
Found on
http://en.wikipedia.org/wiki/East_Pakistan

Former province of
Pakistan, now Bangladesh. ...
Found on
http://www.encyclo.co.uk/local/20688

Former province of Pakistan, now Bangladesh
Found on
https://www.encyclo.co.uk/local/21221

From August 15, 1947, to December 16, 1971, the eastern part, or East Wing, of united Pakistan. Seceded in 1971 to become Bangladesh.
Found on
https://www.photius.com/countries/bangladesh/glossary/index.html
No exact match found.