Coming to Gurgaon from Hyderabad for 3 days. Advice and tips please.

Hi all.

I am coming to Gurgaon from Hyderabad for 3 days. My training is at Global Gateway Tower. Please give me some advice:

About weather (and clothing!)

About budget hotels close to the training location.

About food (Halal or vegetarian options).

About staying safe.

About local travel.

Anything that I have missed mentioning here.

Thanks in advance.