Q.Under which Act, and with effect from which date, was the state of Andhra Pradesh bifurcated to create Telangana?

The single most important date in this state-specific unit is the appointed day on which Telangana was carved out of the united Andhra Pradesh.

Option (a) refers to the 1956 States Reorganisation, which created the united Andhra Pradesh (by merging Andhra State with Telugu areas of Hyderabad State), not the bifurcation. Option (b) is correct: the Andhra Pradesh Reorganisation Act, 2014 bifurcated the state and created Telangana, with the appointed day being 2 June 2014. Option (c) refers to the 1953 formation of Andhra State (the first linguistic state), not the 2014 bifurcation. Option (d) refers to a later amendment concerning the capital, not the original bifurcation. The 2014 Act also made Hyderabad the common capital of both states for a transitional period.

Confusing the 1956 formation of united Andhra Pradesh with the 2014 bifurcation; mixing up the appointed day (2 June 2014) with the 1956 or 1953 dates.