Rajeev, 

Careers360 is one of the best platform for students to predict ranks and colleges and it also provide study material, syllabus etc. 

Careers360 has been continuously provided best of the service. It has shown it's excellency from it's beginning. 

Rank predicted by careers360 is almost accurate and will be similar to rank provided by NTA. 

though not exactly but it will be approximately equal to rank provided by NTA.