Hello Mr Mishra, How are you? Stones in the gall bladder are a fairly common finding during USG of the abdomen. You do not need any additional tests to confirm the presence of gall stones. Gall stones can cause pain in the abdomen and vomiting, but it does not cause swelling of the feet. So I hope you have gotten that complaint diagnosed and treated before considering surgical treatment of the gall stones. In 99% of the cases, the treatment is accomplished by Laparoscopic Cholecysytectomy (removal of gall bladder by making 3 small cuts on the abdomen guiding the surgery through a small camera inserted). This is a fairly routine surgery and could be done within a cost of 30 thousand rupees at most hospitals. Hope this helps and please do not hesitate to contact me for more details.