Question: do naav par pair rakhna in english?
Answer: To keep your foot on your head and run (सिर पर पैर रखकर भागना - sir par pair rakh kar bhagna). This too can be translated as "to show a clean pair of heels". When we run really fast, we take long strides and lean forward, thus bringing our head and foot close together. This image is neatly caught in this proverb.