How many years until a grafted Alphonso mango tree starts commercial bearing?

Grafted Alphonso usually gives the first few fruits around year 3 to 4, but real commercial yield builds from year 6 to 8 onward and a tree reaches full bearing around year 10 to 15 depending on spacing and care. In the early years remove most flowers for the first two seasons so the plant builds frame and canopy instead of exhausting itself on a tiny crop. Focus on training a good framework, light formative pruning, basin management, drip plus organic matter, and hopper and anthracnose control. Alphonso is alternate (biennial) bearing, so even mature trees give a heavy year followed by a light year. You can earn early income by intercropping with vegetables or short crops in the wide tree gaps for the first 5 to 6 years.