As prices of products may vary depending on the region and time, it's best to check multiple online retailers to find the lowest price of a 50-inch LED TV. However, as of my knowledge cutoff date (September 2021), here are some popular brands of 50-inch LED TVs with their lowest available online prices:
- Kevin 50 Inches Full HD LED TV (KN50FHD): available on Flipkart for around Rs. 21,000
- Onida 50 Inches Full HD LED TV (Live Genius 2 Series): available on Amazon for around Rs. 22,000
- Power Guard 50 Inches 4K Ultra HD LED TV (PG50F4K): available on Amazon for around Rs. 26,999
- VU 50 Inches 4K Ultra HD LED TV (50UT): available on Flipkart for around Rs. 30,000
- TCL 50 Inches 4K Ultra HD LED TV (50P615): available on Amazon for around Rs. 32,000
Please note that prices may vary depending on various factors such as availability, region, and discounts offered by retailers.