Answer : 2. "Fifth Five Year Plan"
Explanation :

1. In the fifth five-year plan, 'District Industries Centres' were established in all the districts of Rajasthan.

2. The idea of planning for the reconstruction of the economy received public support throughout the world in the 1940s and 1950s.

3. The work of preparing, implementing and regulating five-year plans was done by an institution called the Planning Commission.