Don't buy a SMART TV.
Buy a LED TV with best Picture quality & lots of HDMI & USB ports. (can save here as you are buying non-smart tv)
Buy a Google Chromecast 2. (Around 3000-3500 Rs.)
This is the best combination and makes your TV smarter than all Smart TVs available.
(You can also look at Panasonic Plasma TV with best PQ.)