Best dslr for a beginner?

I'm interested in photography and my budget is 50k… I decided to buy nikon d3300(that comes with dual lens 18-55 and 70-300) plus prime lens 50mm f1.8… Is it good or any other options should i be considering?

No

Canon

There's no such thing as a beginner's dSLR. All dSLRs are basically the same. If you can afford to buy the most expensive one out there to learn fron then good for you. No one should stop you from doing so because the cheapest ones are the hardest to use, even if you already know what you're doing.

Oops!

Since you already bought the cheapest one, just go with it. You did good in buying 2 other lenses. You can still use those when you decide to upgrade the camera later when you realize it's just not fun using the camera you already have. The more expensive the camera is, the more you will enjoy shooting with it.

The Nikon D3300 is capable of getting excellent quality photos as soon as you learn how to use it. As an entry level DSLR it has some features removed from it to get the cost down, such as the number of focus points - but I usually only use the center one, so not a loss as far as I'm concerned. The fixed LCD is a limitation since you can't shoot holding the camera over your head or below it either. And the lack of time lapse recording can be a limitation.

The lenses you got: the 18-55mm will be extremely useful for most of the shooting you will do. The 50mm will be good in low light situations, but it might be a little long for indoors work. Nikon has two 70-300mm lenses; the one with VR is very good; you probably got the one without VR which is less sharp and difficult to use without a tripod. So, yes, your next purchase should be a tripod.

Enjoy your photography learning journey. You are off to a good start.

You made a good choice. Enjoy it.

If you want to do blogging then you need one of the 5*** series with an articulating LCD

There aren't "best" cameras for a BEGINNERS but there are some more recommended than others… Those they can afford to buy and those they can easily master; the details of which one is up for grabs, since it is an individual preference (there's no such thing as the best camera AMONG cameras…)

I'm certain someone will come along and suggest Canon or Pentax or Sony… Because it's what they use (chauvinism, I guess). I'm only familiar with the Nikon cameras so I'll recommend great mid-range entry level Nikon cameras, starting with the D5300 ond D5600, and if you can afford the "better" ("faster") zoom lenses, Nikkor AF18-55mm f/2.8D and Nikkor AF 70-200mm f/2.8D AND the Nikkor 35mm f/1.4D prime and possibly a Nikkor. You may notice that these rec 50mm f/1.4D prime, you'd have gear to drool over. I hope you're aware of the phenomenal features of the suggested cameras… And the sharpness and top quality glass of the recommended lenses. You'll have this camera for years to come, and you might even want to keep it as a spare or second camera when you upgrade to a more sophisticated camera in the future. Whichever you decide upon, READ the Instructions Manual (you'd be surprised with what you'll learn reading the manual) and plan on taking a Beginner's Photography class… What you learn in a total of 12-14 hours would ordinarily take you many, many months to learn on your own.

There are no bad DSLRs, just ones that will be better for specific users.

Personally, I'd say to NOT buy a Nikon D3xxx series. The primary reason is that Nikon has removed the focusing motor from the D3xxx series of cameras. This not only limits which lenses you can buy, but it also makes it very difficult to figure out which lens are fully compatible with your camera. This is even more confusing when buying used lenses. Be aware that over the years, Nikon has developed about 5 different lens mounts. All will mount on any Nikon DSLR, but only a select few will be fully compatible where the camera can control the exposure and focusing.

A far less complicated system would be a Nikon D5xxx series. But that's out of your budget, and you should really be concerned with your lenses more than which body to buy.

Canon's T series of cameras is quite good. Add on the Magic Lantern firmware upgrade, and you'll have a fairly decent tool for making videos. With the upgraded firmware, any of the T series from Canon will better than most Nikons when it comes to video.
Canon's lens line up is quite extensive, as is Nikons. All 3rd-party brands like Sigma, Tamron, Tokina, and Zeiss make all of their lenses to fit Canon and Nikon. However, when new lenses are introduced, they are always for the Canon system 1st and then some months later, a Nikon version is released. Canon is just that much more popular among the amateurs.

Without question, the absolute best and most advanced DSLR within your price range is the Pentax K-70. Unlike Canon and Nikon which put their image stabilization system into their lenses, Pentax uses sensor shift technology or in-body image stabilization (commonly referred to IBIS). This means that every lens you will ever use will be stabilized up to about 5 stops. IBIS provides you with a huge technological advantage because of the fact that you can use any lens. Many fast and inexpensive primes like the very popular 50mm f/1.8 are not make with image stabilization. No one makes a stabilized 50mm. For around $130 USD or 8,800 Rupees, the 50mm on a Pentax will allow you to take shots at low ISO levels that are simply not possible with anything from Canon or Nikon.

IBIS means not having to buy a stabilization system with each and every lens. It also doesn't require additional lens elements, so your images will be sharper. And finally, IBIS will stabilize all 5 axis of movement instead of just 3 that in-lens stabilization systems can do.

If you want to take shots of the stars and Milky Way, only Pentax has a feature that uses the sensor shift technology to allow for shutter speeds beyond 30 seconds without getting star trails. Normally, you'd need to use a fast f/2.8 (or better) lens along with high ISO settings around 3200 to prevent the stars from showing up as smudges. Because Pentax has IBIS, it can move the sensor 1 pixel at a time to cancel out the movement of the stars caused by the rotation of the Earth. This will allow you take shots of the stars and Milky Way at lower ISO settings which will increase your sharpness, lower the noise, and increase the color, clarity and contrast of your shots in ways simply not possible with anything from Canon or Nikon.

Pentax K-70 has faster shutter speeds and faster shooting rate than anything in the Canon T series or Nikon D3xxx series. In fact, the K-70 is as advanced as a mid-range Canon or Nikon.

Pentax K-70 is the only body in your price range that is completely weather and dust proof. Because of the high humidity levels in India, having a sealed body and lens (Pentax has many sealed lenses, too) means that you won't have to worry about mold or fungus growing in your gear.

Compared to the 4-year-old Nikon D3xxx series and the 5-year-old Canon T5i and 3-year-old T6i, the Pentax K-70 is less than 2 years old. So the sensor technology is going to be best with the Pentax K-70 over similarly-priced Canon and Nikon DSLRs. Because of the this, the Pentax K-70 has much better ISO performance (less noise) than Canon or Nikon:

Here's a side-by-side comparison of features

50k?

50k what?

Like Kalico says, there's no best camera for a beginner. Take a basic photography class. Then you'll know something.

I've been a photographer since the mid 1960s. I started with a 620 roll film camera.
Then to several 35 mm film cameras.
Then a Screen graphic camera with large format sheet film.
Then digital.
You gravitate toward what you need, not what others recommend.

Get anything you want for $50,000.

Go for it. What you mentioned will last you for YEARS!