Hello Alok,

Yes you have good chances of getting a seat in the various AYUSH courses in West Bengal .

List of a few top colleges are as follows - 

1)Burdwan Homeopathic Medical College and Hospital

2)J .B.Roy State Ayurvedic Medical College and Hospital

3)Raghunath Ayurved Mahavidyalaya and Hospital

I would suggest you to apply in all the top Veterinary, Ayurvedic and Homeopathic Colleges .You would surely get a seat in any of the Colleges .

All the best for your future .Hope this helps .