Traveling under a budget of 50,000 INR outside of India is doable. You can start with the neighbouring countries like Bhutan, Nepal, Srilanka where the exchange rate of INR benefits you.
Additionaly you can also think of Thailand, Singapore and Malaysia.
Good beach destinations like Bali is also defintely possible under budget.
Hope this helps.
There are lot of places you can visit and countries that have currency value less than india can easily fit under 50 k but here is the list I have for you Sri Lanka Nepal Cambodia Hong Kong Jordan Myanmar Seychelles Maldives Dubai Thailand Bali Malaysia Singapore Bhutan