British ruled India was divided on religious line when British decided to leave after World war II .The British managed to convince the the leading political figures of India and partitioned India to form a New Islamic Republic of Pakistan covering muslim dominated areas of N.W frontier Province & Bengal.Islamic Republic of West Pakistan & East Pakistan was formed on 14th August 1947.

Capital: Islamabad.

Bengali speaking East Pakistan was liberated from Islamic Republic of Pakistan after a bloody civil war and People's Republic of Bangladesh came into existence on March,1971.

Capital: Dhaka

Bhutan, a Buddhist kingdom on the Himalayas’ eastern edge, is known for its monasteries, fortresses (or dzongs) and dramatic landscapes that range from subtropical plains to steep mountains and valleys. In the High Himalayas, peaks such as 7,326m Jomolhari are popular trekking destinations.

Capital: Thimphu

Ceylon ,Now Democratic Socialist Republic of Sri Lanka attained independence from British colonial rule during February,1948. is an Island nation situated in the south of India

Capital: Colombo

More Info: en.wikipedia.org