These are top 5 Laptops under 50k :

1. Acer Nitro 5:

Acer Nitro 5 is one of the best budget gaming laptops. Under the prices of 50000 rupees, it gives you 8GB of Ram, 1TB of HHD hard disc along with 256 GB of SSD, one thing that it can be sure is fast processing as it comes with a processor from AMD named ryzen 5. Ryzen 5 is a program to perform better than the intel core i5 processors, which are found in similar budget laptops. It also gives you a 4GB of graphic card from NVidia or AMD. It has 15.6 inches full Hd IPS display; hence you will have a big screen to watch movies and play games or doa office work. It costs around 49000 rupees, while other variants may be cheaper or more expensive.

2.Lenovo IdeaPad s145:

this is pack with the range of features, capable of handling almost any task at hand. it is lightweight and massive bezels which makes it travel friendly. it is packed with the intel core i5 processor and has an HDD storage of 2TB and 8GB of Ram. 4Gb NVidia graphic card. In my opinion, it is the best laptop for office work. 15.6 inch full HD plus display, which assures you great viewing experience. It costs around 51000 rupees.

3.Asus TUF Gaming:

it is a 15.6-inch full high definition display laptop. It comes with a 35 W AMD process named the ryzen five along with 8GB ram and 4 GB of NVidia GTX graphics card. It has 552 GB SSD type storage and has an extra slot for increasing storage. It is one of the top gaming laptops produced by Asus. It is suitable for heavy gaming and editing videos. It costs around 48000, and its rice comes down to 40000 during sales, people who want a gaming laptop for a lower budget can grab it. 

4.Mi notebook:

it is mi's first laptop under the 50k budget. This laptop aspect with the core i5 10th gen processor, which is the latest generation of Intel processors. It also has 8GB of ddr4 Ram along with 4GB of NVidia GTX graphics card. It provides you inbuilt storage of 552 GB SSD hard disk. Since it is js a notebook hence its battery, life is also long. In this budget range, this is the best laptop for traveling since it is small and also lightweight. The only e con of this laptop si that it doesn't have a webcam. MI sells the webcam separately. It is not made for massive giving, but it can do all the tasks efficiently.

5.Asus Vivobook Gaming:

it is the lastest laptop launched by Asus and is the first gaming laptop off the vivobook series. It is back to attack core i5 processor of 10th generation along with 8GB ddr4 NVidia GTX graphic card. It also has a  dedicated slot for external storage, but you are already given a 1 TB HDD storage along with the 256 SSD storage. This laptop comes with the inbuilt fingerprint sensor, which comes very handy sometimes.

So this is where the best budget laptops that you will find in the market. All of them will be found in Flipkart and Amazon.