Can I get scholarship if I have low grades?

Scholarships are generally granted on two bases: need and merit. The criteria for both, as the name suggests is, need-based scholarship is granted to those who have proven financial constraints but have excellent profile and are well-deserved based on the set criteria. The merit-based scholarship is awarded to students who have demonstrated excellent merit and regardless of their financial condition. The merit-based scholarship can be provided to students even with an excellent financial situation. 

So you can get a need-based scholarship for yourself if you have slightly low grades but other aspects of your profile show that you are well-deserved and also if you can demonstrate your financial condition to be low. 

Also, different scholarships cater to different courses and countries so please elaborate on the course that you wish to pursue and if you have any country preferences.