In India some Muslim people goto a person and inquire whether their marriage will work out properly or not. Its called Faal Nikalna (somewhat similar to astrology).
Does this practice have any legitimacy in Islam ???
Believing Fortunetellers and Astrologers is major sin number 46 in Imam Shamsu ed-Deen Dhahabi, Al-Kaba'ir (translated) or Major Sins in English (pdf). Among other ayat and ahadith listed, we have:
[He is] Knower of the unseen, and He does not disclose His [knowledge of the] unseen to anyone -- Qur'an 72:26
Instead, Muslims ask Allah for guidance through istikhara:
Salat al-Istikharah is a prayer recited by Muslims when in need of guidance on an issue in their life.