Monitors LG 24MR400 or Acer EK240Y ?

I would suggest buying the LG one. Not only it is beating acer one on refresh rate and response time you should also have to think about after sales support where LG beats acer quite easily.

+1 for LG. However , in the same budget segment, there are many monitors with little better specs. Last year I bought MSI G2422 for 9K in Diwali sale. If you are still looking for Acer brand then their Nitro series is good. Check Amazon. Acer Nitro VG240Y with HDR10 and 165Hz refresh rate available for 8.5K.