MThere are total Eight Kutami's will be taken into consideration while doing Marriage Compatibility for bride and bridegroom. They are
1 varna Kutami
2 Vashya Kutami
3 Tara Kutami
4 Yoni Kutami
5 Grahamaitri
6 Gana Kutami
7 Bhakoot Kutami
8 Nadi Kutami

1. Varna Kutami:
There are Four Varnas defined in Vedic Astrolgy. They are Brahmana, Kshatriya, Vysya and Sudra. Each native(Bride or bridegroom) with his Birth star along with Charanam/Padam will fall under  Rashi(e.g Mesha,Vrishabha,Mithuna,etc...) and each rashi has been classified as some Varnam. here in the below table, I'm providing the information regarding Rashi and its varnam...

Brahmana Varna  : Meena,Karkatak,Vrischika
Kshatriya Varna : Mesha,Simha, Dhanusu
Vysya Varna     : Vrishabha,Kanya,Makara
Shudra Varnam   : Mithuna,Tula,Kumbha

(note: To know your rashi with respect to your birth star clickhere)

Here in the below table, I'm providing recommended combination for Bride and Bridegroom...


From the above table, It means that a bride with Brahmin varna (as per BirthStar) can select Bridegroom with Brahmin Varna. and a bride with Kshatriya varna can't go for bridegroom with Vysya and Shudra varnas, etc...

Generally, a match with same varna is said to be a ideal one.

2 Vashya Kutami

Rashis are divided into Three groups with respect to their characteristic. They are Nara Rashi, Chatuspada Rashi and Jala Rashi. Here in the below paragraph, I'm providing information of each rashis and its category...

Nara Rashi           :    Mithuna,Kanya,Tula, Firsh part of Dhanus
Chatuspada Rashi :    Mesha,Vrishabha,Simha,Makaram, Second part of Dhanus
Jala Rashi            :   Karkataka, Vrischika, Meenam

Generally, a match with same Characteristic is said to be a ideal one.Here in the below table, I'm providing information of marks obtained in vashya kutam in combination of Bride and Bridegroom rashis...



Here in the above table 1 means Mesha, 2 means Vrishabha, 3 means Mithuna, 4 means Karkataka,5 means Simha, 6 means Kanya,7 means Tula, 8 mean Vrischika, 9 means Dhanus, 10 means Makaram, 11 means Kumbham, 12 means Meenam.

3 Tara Kutami:
3 points are allotted for Tara Kutami. The Birth star of the bridegroom is counted from that of the bride and then divided by number 9. If the remainder is 1, 3, 5, 7, then no points are given. If from one side it is favorable and from the other side unfavorable, then 1½ points are given.
(note: To know serial number of Bride or Bridegroom birth star Click here.)

4 Yoni Kutami:
4 points are allotted to this. This implies physical contact or sexual compatibility. All the 27 Nakshatras have been assigned certain animals. Marriage between Nakshatras indicating the same class of yoni and between the male and female constellations of that yoni is said to be conducive to great happiness, perfect harmony and progeny.
(note: To know the assigned animal of bride or bridegroom birth star click here)

5 Grahamaitri:
Grahamaitri is derived from Sanskrit word GRAHA+MAITRI means planet+friendship.Grahamaitri is very important thing to be considered for match making. Please try to avoid match if bride and bridegroom does not have grahamaitri. Each Birth star belongs to a particular rashis and each rashi will have its own ruling lord.
(To know the relationship between ruling lords of Bride and Bridegroom rashis click here)

6 Gana Kutami
Bride and bridegroom with Rakshasa-manusha ganam is not recommended. Rest of the combination, like Deva-manusha, Deva-Rakshasa are okay.
(Click here to know Ganam of your birth star)


8.Nadi Kutami
All the 27 star has been divided in to three Nadi categories. they are Adi Nadi, Madhya Nadi, Antya Nadi. If Bride and Bridegroom stars does not belong to same nadi, then the match is good one. Vice-versa, Bride and Bridegroom with same nadi is not recommended.
(note: to Know the Nadi of bride or bridegroom birth star click here)


Miscellaneous:

1. Bride of the following star can marry Bridegroom of the same star.
               Rohini, Arudra, Magha, Visakha, Pushyam, Sravanam, Revati, Uttarabadra.

2. Bride marrying Bridegroom of the same star of the following is not recommended.
               Aswani, bharani, Ashelesha,Pubba,Swati, Anuradha,Satabisham,Moola
3. Though, It has been said that Bride and Bridegroom should not have same nadi, following stars are exceptions
               Uttarabhadra, Revati, Rohini, Mrigisira, Arudra, Sravanam, Pushayami, Visakha