Very careful about following rules or conventions.
नियमों या प्रथाओं का पालन करने में बहुत सावधान
English Usage: His punctilious nature made him an excellent accountant.
Hindi Usage: उसकी विस्तार से ध्यान देने की प्रवृत्ति उसे एक उत्कृष्ट लेखाकार बनाती थी।
niyamon ka palan karne wala, niyam ka palan karne wala, niyamoon ka palan karne wala, niyamon ka paalan karne wala, niyam ka paalan karne wala