Generally speaking, the direction of science and engineering needs GRE. If it's business, I suggest you take the GMAT, and it's best to apply for the national GRE in Singapore, which is almost 320+. Of course, you can't just look at this condition, but also look at the feasibility of the application in combination with your undergraduate school, major, average score, IELTS and other backgrounds.
I haven't applied for G in Singapore before. Of course, the major I applied for did not require G. I got the offer from Nanyang Technological University in Mint Tree, which is my favorite major and I feel good personally. I suggest that if you apply here, you should also make full preparations and know more about the situation in advance. If you apply for admission this fall, you should do so as soon as possible.