how to get admission in London Business School or National University of Singapore, for MBA.
London Business School and National University of Singapore are highly competitive institutes and the acceptance rate is very low so you need to have a very good score in your undergraduate studies. Aparty fro stellar undergraduate you need very good score in GMAT. You need to have some very good LORs and you need to write a very good SOP. The SOP should justify your ambitions. You should have a fixed and motivated career path and you will need to justify it.
How can one apply for MS in National University of Singapore by GATE score?
I am providing you a link below that could help you in finding out a possible solution to your question
https://www.inspirenignite.com/singapore-universities-nus-and-ntu-ms-admission-based-on-gate/
This link describes the criteria of the admission in the National University of Singapore by the GATE score
Hope it helps best of luck