Dina Koota is about health and familiar happiness.

It is based upon the Tara. In Tara calculation 9 groups of Nakshatras
are considered. Each group has a benefic or malefic significance.

Tara can be applied to a single planet (e.g. the Moon) or it can be
interpreted for a pair of planets. In Dina Koota the relationship
between the Moon positions (i.e. the relationship of Janma Nakshatras)
of the couple is evaluated.

The table below shows the Tara types and their assignment to the
Nakshatras.

No.

Tara

Effect

Cycle 1

Cycle 2

Cycle 3

1

Janma

Benefic

Aswini

Magha

Moola

2

Sampat

Prosperity

Bharani

Poorvaphalguni

Poorvashadha

3

Vipat

Obstacles

Krittika

Uttaraphalguni

Uttarashadha

4

Kshema

Gains

Rohini

Hasta

Sravana

5

Pratyak

Destruction

Mrigasira

Chitra

Dhanista

6

Sadhaka

Success

Ardra

Swati

Satabhisha

7

Vadha

Destruction, Death

Punarvasu

Visakha

Poorvabhadra

8

Mitra

Benefic

Pushyami

Anuradha

Uttarabhadra

9

Parma Mitra

Prosperity

Aslesha

Jyeshta

Revati

Nakshatras 3, 5 and 7 are regarded as malefices.

Dina Calculation

The rule for Dina Koota calculation is

Definition

Count the number of Nakshatras from to groom to the bride and divide it by 9. If the remainder is 3, 5 or 7, no points are assigned, else 1.5. Repeat the same in reverse order, again 1.5 points are assigned if the remainder is not 3, 5, or 7.