Only 0.1% of the students who apply make it to the final list of #UPSC CSE. ~0.01% make it to #IAS. What separates these 0.01% is their ability

Only 0.1% of the students who apply make it to the final list of #UPSC CSE. ~0.01% make it to #IAS. What separates these 0.01% is their ability