What type of pump to be used to pump water to tank 40 feet high - Water pressure is very low

Dear All,

I need to pump water from the ground level to tank 40 feet high by installing pump at 30 feet. The problem is I have BMC supply water pipe 0.5 inch which dose not have pressure needed to pump at 40 feet height. So I need to suck water from it, but I can't put my pump at ground level because of some reasons.

Please advice me what type of pump I should use to pump the water up to 40 feet height. Its urgent.