Hello Shaambhavi, If you have 50th Percentile(General Category) of marks according to Tamil Nadu top scorer's mark,you will be eligible for applying for the management seat. We won't be able to say anything regarding 50th percentile marks as of now since this year,the cut of marks are expected in raise in Tamil Nadu which will also result in increase in NEET counseling Eligibility marks.

For more details,visit the below link to know what would be the 50th Percentile for this year.

https://medicine.careers360.com/articles/neet-cut-off

Good luck !!