Planetary Movements. Online kundali matching is the process to compare kundalis of the prospective bride and groom. Horoscope matching or Kundali Milan is the compatibility analysis between couples as per Vedic Astrology. Accurate Kundali match making is critical for a happy, long-term, and successful married life. Gun Milan is considered extremely important as per the Indian tradition before finalizing the marriage. Kundli matching or Gunamilan is the first step in planning a marriage. This is also why Hindu astrology lays emphasis on Janam Kundali milan before a couple ties the knot.