Question

when is green revolution started in india.

Answer 1

Green Revolution. Green RevolutionIntensive plan of the 1960s to increase crop yields in developing countries by introducing higher-yielding strains of plant and new fertilizers. The scheme began in Mexico in the 1940s, and was successfully introduced in parts of India, se Asia, the Middle East, and Latin America.

Answer 2

It started in the World Mexico first around 1940s and In India Green Revolution started in 1960s with HYV seeds introduced in 1965.
We can not assign any specific date here because it was a process that started with concern for famines and food shortages.

Here some dates I am giving with some exactness.
Morman Borlaug visits India in March 1963

InJan 1972 M S Swaminathan becomes the director General of ICAR.
Or we can also refer to July, 1966 when HYV seeds were shipped from Mexico to India. These seeds were of wheat

I think the questioner should be some satisfied now.