hey

you might not get government seat in tamil nadu with 404 marks belongign to obc category under all india quota. as per previous year the cut off of tamil nadu for obc under all india quota was 555 marks of govt medical college ESI and hospital in coimbatore and 548 marks of ESI-PGIMSR in chennai. we are not sure about this year cut off as it changes every year depending on no.of candidates, no.of seats and difficulty of exam. so hope for great result. 

you are expecting great marks you might get seat in some other state. to poredict college on the basis of your neet score visit following link https://medicine.careers360.com/neet-college-predictor?icn=neet_clgpd_landing_page&ici=clevertap-sticky-web 

goodluck