amazon dot in auto "add to cart" bot for sales

There is sale going on amazon@in right now for redmi 3 n0te and the rush is way too high. I need a bot that- # login my amazon dot in account # add anything that is going to be on sale for anytime interval on the excat time the sale is gonna start. Lets say the sale is going to start ar 12:00pm then it should trigger add to cart for the item on exact time without any delay.