This is the famous hindi song, It has a standard and a wonderful strumming pattern that one must know.

Key Signature: C Major Scale
Time Signature: 4/4

| C | Am | F | G | x2
| C | % | Am | % | F | % | G | % |

The “x2” play the whole line twice
The “%” symbol means that play the chord twice.

Rhythm (Strumming Pattern)

1&  2&  3&  4&
?   ?V rest V?V

So it goes like
Down, Down-Up, Rest, Up-Down-Up…Down, Down-Up, Rest, Up-Down-Up…and on…