Which is better ? Doing solved example of objective maths rd sharma or exercise of a das Gupta ?

@ shuhaibks 
always a das gupta will be in advance with rd sharma , beacuse r d sharma are written considering to the board and jee main level , but not for jee advanced , but a das gupta is for jee advanced as well as jee mains . 
so, do the exercise of a das gupta . that will benifits you . 
ALL THE BEST ..