From Wiktionary, the free dictionary
গৈ (goi) is the perfect participle of যা (za, “go”) + পা (pa, “get”).
গৈ পা • (goi pa)
- reach (after going)
আমি ৰাতি তিনিটাত ঘৰ গৈ পালোঁ।- ami rati tinitat ghor goi palü̃.
- We reached home at 3 o'clock at night.
See পা (pa)