Hello, 

As you want to know the cutoff fir mechanical engineering. Let me tell you that the cutoff for different branches vary from college to college every year. The cutoff depends on many factors like the number of seats available, number of candidates appearing for the examination, difficulty level of the question paper, number of candidates passed out and many more. So, its very difficult to predict the cutoff for any particular branch. But career360 provides a cutoff predictor tool which may let you know the previous year's cutoff :

https://engineering.careers360.com/articles/jee-main-rank-predictor/amp

I hope this would help you. For further queries please feel free to write me down in the comment box.