HI Bimal,
E-commerce is definitely on the rise and it will continue to gain in popularity - pandemic or not. Given this, as one of the world's largest eCommerce sites, Amazon is certainly well positioned to benefit. It owns 39% of the U.S. share of eCommerce activity, although competition is ramping up quite quickly.
Is Amazon worth considering after its recent price drop. I think so - there is no denying the company is the industry leader and it continues to defy expectations. It is expensive? Sure. But it is one of those companies that always trades at expensive valuations because its is growing at a pretty hefty clip. At some point however, one will have to question if it can continue to grow at such a pace but I don't think we are there quite yet.
Mat