i got 403 marks.all india rank 181901 and category rank 65075.where can i get the seat going farward.

403 is very good score in neet if it is your 1st attempt. But on the basisof  this year result cuttoff will be going to be unexpectedly high, as you know AIR 1 scored 720/720 .
Please do take part in your state and All India councelling for MBBS&BDS . But there is less chance of getting any MBBS Seat through All india cuttoff.
You may get any BDS seat in your state councelling .
But again it's totally your call , what you want MBBS or BDS .
2nd option - If you are financially strong then you can get seat in Pvt medical colleges across india . Or you can choose to go Abroad for your further studies .
Last but not the least if you are fresher then i strongly recommend you to take a drop and appear once again for next year.

All the Best !!