A phrase used to describe someone who is very restless or nervous

ऐसा व्यक्ति जो बहुत बेचैन या घबराया हुआ हो

English Usage: He can't sit still, it's like he has ants in his pants.

Hindi Usage: वह बिल्कुल शांत नहीं बैठ सकता, जैसे उसके अंदर बेचैनी हो।