Natchatira porutham basic of 12 should consider, each porutham have specific rules and advantages for bride and groom life. Out of 12 astrologer must consider 2 porutham is rajju porutham and yoni porutham if the natchatira porutham not give positive result then other porutham is not come for consideration. https://onepagehoroscope.com/accurate-thirumana-porutham