From which of the following does India earn the most foreign exchange?

Give full names for the following abbreviations:
$(1)$ $\text{MOET}$
$(2)$ $\text{IRRI}$
$(3)$ $\text{IARI}$
$(4)$ $\text{SCP}$
$(5)$ $\text{FSH}$

As a result of various plant breeding techniques for the development of high-yielding varieties of wheat and rice in the mid-$1960$s, there was a dramatic increase in food production. This phase is called $Green Revolution$.
$\quad\quad P \quad Q$

Which of the following has provided the main food source for humans?

Which is the most common plant used as green manure in India?

Where is the Dudhsagar Dairy located?