I wanted to study philosophy.

Hello aspirant,

Yes, you can surely get admission at 70% though you may not find good colleges or the subject of your choice. 

Delhi University also conducts few entrances for graduation like BBM if you are not cent per cent sure about your percentage then you can also apply for such entrances.

Please check the details on the offical website of DU www.du.ac.in

All the best :)