MBA/ Masters confusion?

I am currently preparing for GMAT, and wanna pursue MBA in Sep 2026 intake, but in India for most of the colleges applications will be closed when I'll get my score and outside India, not eligible for MBA as I don't have 3 yr exp, so planning to go for Masters, so will that be worth it, I am from engineering bg, also are 3 months enough for gmat to score well??