Hello Preety!

There are various websites where you can get study materials, sample papers, quizzes etc for CLAT exam. These sites are definitely helpful. Along with referring to these materials, you must keep reading and updating about latest news. Some of the apps that you can use are

1. Edurev
2. Unacademy
3. Utkarsh
4. Online tayari
5. CLAT 2020 Exam Preparation App : AILET Law Exam
6. CLAT 2020 : Law Entrance Preparation, CLAT Previous Papers

Here is the link to sample papers of CLAT

https://law.careers360.com/articles/clat-sample-papers

All the best!