The passage refers to strengthening efforts "with the formulation of the Bombay Plan in 1942," describing it as taking rapid economic development, equitable distribution and employee welfare schemes seriously.
It's worth noting that the passage actually names this the "Bombay Plan", while the question refers to it as the "Bengal Plan", which looks like a naming slip in how the question itself was worded rather than an error in the passage.
Either way, the year the question is testing is 1942, so that is recorded as the answer.