In which of the following states high yielding varieties of food grains were introduced as part of the first phase of Green Revolution (1966-72)?
1. Andhra Pradesh
2. Tamil Nadu
3. Punjab
4. Haryana
Select the correct answer using the code given below:
1
1, 2 and 3
2
2, 3 and 4
3
1 and 2 only
4
3 and 4 only