Assuming it is keyhole surgery 10 days to two werk period of care should be sufficient. Avoid exertion lifting weight take care of surgery site. There can be some gas or diarrhea. Take simple but high fiber diet whole grains fruits vegetables. Avoid outside food oily and flatulent food like cabbage cauliflower onion beans choley rajma. After 10 to 14 days you can start normal activity without heavy exertion or lifting weight.

At least 2 months or Consult your surgeon

If you want permanent solution then take proper knowledge about this

Hi Take  rest  till complete  healing  of wound Generally  1 and half  month. Take  fat  free diet  for  gall bladder  surgery.

1.5 months minimum