Hello Aspirant,  please mention the stream in which you want to take the admission. In general the merit is about 95-98℅. There are two ways by which you can get the college. Firstly on the basis of merit list i.e your 12th marks. And secondly there is an entrance exam if you qualified then you can get it. 

I hope this will help you. 

Hello Aspirant
Yes , of course you can get admission in DU .
Your score is good . If you want to take Science stream then you should go for lower college of du as per previous year's cut off of the du .
In the top college you may get lower branch .
Thanks