Liposuction seems to be an ideal treatment for this, but keep in mind that it isn't a weight-loss alternative. If losing weight is your goal then you will benefit more from dieting, exercising and even through bariatric procedures such as gastric bypass surgery. Since this appears to be the case of localized deposits of fats, thus you can discuss this treatment with your surgeon.
Possible risks however are: bleeding, skin infection, nerve irritation, body reaction to anesthesia, or bumpy, wavy, withered and uneven appearance of skin, fat embolism which is a medical emergency, as well as kidney, heart and lungs related diseases, or accumulation of fluid beneath skin in some region of your body which will require a separate mini-surgery, so discuss these complications with your specialist before taking up this operation. If you don't maintain weight constantly then your body will return to its original shape.
The cost of this operation can fall in the range of rs. 20,000 to rs. 5,00,000 or exceed further, depending upon volume of fat to be removed, expertise of doctor and location as well as infrastructural facilities provided by the clinic.
This page will help you find surgeons who would be better equipped with knowledge & experience to handle your case - Liposuction doctors in Mumbai, let us know about it if you would want a different city or have more queries! And if you are already undergoing some other treatment regarding some other issue, then take permission from the doctor along with informing the surgeon.

The post-pregnancy treatment for armpit fat focuses on specific exercises and healthy living. Enfold strength training focusing on the chest and back muscles in your workout. Cardio workouts help with total body fat loss. Keep a balanced diet with sufficient hydration. Work with a trainer for customized workout programs. It takes patience and consistency to get gradual sustainable results. However, if worries arise, consult a medical or fitness expert for further advice.