What would be the expected cutoff???

Cutoff depends on a number of criteria. Your cat score, academics, work experience, Engineer or nonengineer and finally gender diversity. If you can provide your specific career and percentage, I can answer your question.

There is no specific cutoff and it changes every year. You can expect a cutoff of around 85%ile for general category. But keep in mind that if you have above 80% in your Xth, XIIth and graduation you have a good chance to get a PI call