Putting the cart before the horse(idiom)
To do things out of the proper order.
Hindi meaning:अव्यवस्थित तरीके से काम करना
Synonyms: Jumble, Confusion, Disorder, Mix Up
Example: You're eating your dessert first! You've put the cart before the horse.
Trick to remember: App ke cart me zyada chize kar di kyuki Putting the cart before the horse kiya 
