Dear it's very sad to say that, gynaecologist after doing the BAMS is NoT possible, you can not. BAMS is ayurvedic degree & for Gynecologist minimum degree requirement is MBBS.
You can work under MBBS gynaecologist in the cabin.

But not to worry BAMS is a good course.
For more information please click link below..

https://medicine.careers360.com/neet-college-predictor?utm_source=qna&utm_medium=neet_cp