You will get best In-Ear earphones under Rs 300 in India. You can choose any of them and then buy your best and simple In-Ear earphones under 300.
These In-Ear earphones are available on popular E-commerce sites like Amazon, Flipkart etc. So You don’t need to go to a local retail store.
However, I will suggest you go to near retailer what if they are selling at low cost then you can save your little amount of money. Now, brands are competing with latest specifications and they sell their In-Ear earphones exclusive on e-commerce sites.
But if you know someone where you can get these In-Ear earphones offline then try to bargain as well.
Check it Out: Best Earphones Under Rs 500