The Kannada newspaper established in the coastal city of Mangaluru:

Vijaya Karnataka
Hosa Digantha
Samyukta Karnataka
Udayavani

The correct answer is: D) Udayavani.

Udayavani is a Kannada language daily newspaper published from Mangalore, Karnataka, India. It was founded in 1948 by K. Subba Rao. The newspaper is owned by the Kasturi & Sons Limited, which also publishes the English language daily The Hindu.

Udayavani is one of the most popular newspapers in Karnataka. It has a circulation of over 2 lakh copies. The newspaper is known for its unbiased reporting and its coverage of local news.

The other options are:

A) Vijaya Karnataka: Vijaya Karnataka is a Kannada language daily newspaper published from Bangalore, Karnataka, India. It was founded in 1984 by Ramnath Goenka. The newspaper is owned by the Deccan Chronicle Holdings Limited.

B) Hosa Digantha: Hosa Digantha is a Kannada language daily newspaper published from Bangalore, Karnataka, India. It was founded in 1989 by K. S. N. Murthy. The newspaper is owned by the Hosa Digantha Publications Limited.

C) Samyukta Karnataka: Samyukta Karnataka is a Kannada language daily newspaper published from Hubli, Karnataka, India. It was founded in 1960 by H. S. Venkatesha Murthy. The newspaper is owned by the Samyukta Karnataka Publications Limited.