Firstly, what field of view are you trying to achieve? 35mm and 50mm give different FOV.
Secondly, are you using DX (crop frame) or FX (full frame)? I'm guessing you are using DX because you had to ask this question.
Thirdly, are you planning to move to full frame in the next few years? If yes then get the full frame equivalent.

Full frame lenses work on crop frame and full frame cameras. Crop frame lenses can work on full frame cameras but you will get the same FOV as on a crop frame camera.
The cheapest for you is the 35mm f/1.8G DX 50mm f/1.8G FX which is less than RM1k. The 35mm f/1.8G full frame alternative is around RM1.6k. There are no 50mm f/1.8G for crop frame only.

I used to have a D5100 (crop frame) and the 35mm f/1.8G but didn't enjoy it because 35mm on crop frame (around 50mm equivalent) feels not wide enough for landscape/group shots and not too tight enough to take portraits.
Furthermore, the 35mm f/1.8G DX's bokeh isn't that appealing in my opinion.
I suggest you get the 50mm f/1.8G which is cheaper than the 35mm f/1.8G and can work on full frame if you plan to upgrade in future.