Hello dear student,

The contact number of Karnataka Examination Authority (KEA) is shared below
Phone: 080 - 23460460

(From 10:30 Hrs to 17:30 Hrs on Working days)

Fax: 080 - 23461576

The details for Kannada Language test :

The candidates claiming eligibility for Government seats under Horanadu & Gadinadu Kannadiga clauses and whose mother tongue is Kannada, Tulu or Kodava, will have to undergo a Kannada language test. The test is conducted by KEA only in Bangalore Centre.  The minimum passing marks for all Horanadu and Gadinadu Kannadiga candidates is 12 out of 50 marks in order to be considered for assignment of ranks and to become eligible for allotment of seats in Common Entrance Tests. The test paper is of 4th Standard Level. However, the Horanadu and Gadinadu Kannadiga candidates who have studied 10 full academic years in Kannada Medium from 1st standard to 10th standard in places outside the state of Karnataka need not appear for the test.

I hope this is helpful to you
Best Wishes!