No diet will cure your stones, if stones are large then you will need a surgical treatment for that but if they are small it can be treated conservatively. For diet modification it needs to have stone analysis report. Get biochemical analysis of stone if you pass in urine or after the surgery. Till then just drink lots of water.

Need to consult as this will require some discussion regarding veg/non veg diet/ local food availability/ which food you routinely consume in excess. Till then drink more water.