Could you explain what really happens on halving. How one gets profit on this day. How the BTC is used on this day to see more profit. Whom should be approached to do so?
So it relates to how bitcoin works and how bitcoin is generated in a way. Every 10 minutes or so a block is mined and the reward for the block currently is 12.5 btc. A couple of months ago the reward used to be 25 btc, this is before the halving. The next halfing is due in about 4 years from now and when that happens the reward will go even lower down to 6.25 bitcoins.
This can be profitable because the supply of bitcoins being generated decreases, but the demand stays the same> resulting in a overall increase in price.