Hello aspirant, 

With a score of 404,you have chances of procuring a seat in the government medical colleges when comparing the results of previous years. Last year, a minimum score of 406 was required to fetch one a seat in the government medical college, Siddipet in St category under the state quota. But, one thing to keep in mind is that scores and ranks vary each year with difficulty level of the question paper and availability of seats and state quotas. However you can go through the following link to know about the cut off's and ranks for the previous years and calculate your chances of selection 
https://medicine.careers360.com/articles/neet-cut-off/amp
Good luck