Kula Deivam

my husband doesnt know his kula deivam coz they are long back migrated to chennai from village plz. tel me the same and how to worship and follow the rules everyyear.

Husband details:-

Name : Rajkumar.M

Dob : 19.10.1979

TOB : 7.30am

Place : Sivagangai

Nakshatra : Uthiram

Raasi : Kanni

Myself :- Name : R. Shiva Shankari

DOB : 14.07.1982

TOB : 3.55am

Place : Tambaram

Nakshatra : Revathi

Raasi : Meenam

Kula Deivam