The correct answer is Option (4) → Pakistan
1947: India and Pakistan emerge as independent nations after the end of British rule
1948: Sri Lanka (then Ceylon) gains independence; Indo-Pak conflict over Kashmir
1954-55: Pakistan joins the Cold War military blocs, SEATO and CENTO
1960: India and Pakistan sign the Indus Waters Treaty
1962: Border conflict between India and China
1965: Indo-Pak War; UN India-Pakistan Observation Mission
1966: India and Pakistan sign the Tashkent Agreement; Six-point proposal of Sheikh Mujib-ur Rahman for greater autonomy to East Pakistan
1971 March: Proclamation of Independence by leaders of Bangladesh
December : Indo-Pak War, Liberation of Bangladesh
1972 July: India and Pakistan sign the Simla Agreement
1976: Pakistan and Bangladesh establish diplomatic ties | 
