Having a mark of 440 in NEET UG , I would like to know my chances to get into a govt medical college in tamilnadu

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Hi hiba,
Though you didn't mention your reservation category (if any), 440 is not enough for unreserved category to get a seat in Govt. Medical Colleges in Tamil Nadu, looking at the previous year cut offs.
Although if you belong to any reserved category then you have fair chances of getting a seat considering previous records.
Please see that the above information is based on state quota seats.
If you're considering 15% quota then, I'm sorry but it is not possible to get a seat for unreserved category but yes, if you belong to a reserved category then there are chances that you may get a seat.

I hope your query is answered.
Feel free to ask any further question.

All the best!!