Best months to visit Delhi....

[Indiatour]

The best months to visit Delhi are November to March.
The summer months- May to August , can be very hot and dry. August and September see the Moonsoon rains set in and cool down things a bit, however, this brings with it much humidity.

[megrisoft]

But now Delhi is becoming too congested and polluted. In summer, it becomes too hot and hard to tolerate heat in a huge traffic. I really avoid visiting it in summer.

[India1989]

What about winter?

[megrisoft]

In winter, there is too much cold.