Which agreement is noted as coming into effect between Pakistan and India in 1963 per the key

Which agreement is noted as coming into effect between Pakistan and India in 1963 per the key
A: Indus Water Treaty
B: Tashkent Agreement
C: Simla Agreement
D: None of these

The Tashkent Agreement was actually signed in nineteen sixty six after the war of nineteen sixty five. The item uses a different year yet the intended response is Tashkent. Always remember true dates for descriptive answers while following the provided key in past paper practice sets.