Viruthan Shanku is a 1968 Indian Malayalam-language comedy film directed by P. Venu, starring Adoor Bhasi and Ambika.

It revolves around Vikraman, and how he tricks people and steals their valuables in a comic way and also how he wins the heart of Kunjikkavu.

On reaching his Tharavad he understands that his elder brother moved out of their house after marrying a young woman and is now under the control of his mother-in-law.

In the resultant struggle, she was pushed from the attic by the dacoit and the child was abducted for the gold he was wearing.

He got a broken piece of a tiger's claw belonging to the dacoit as evidence, which broke during the struggle.

Soon Vikraman learns that he is affected with Tuberculosis and left home, carrying his gun, in order to save his sister and her daughters from the disease.

To save the tribals from the Forest officials, Vikraman left them and entered deep jungle.

He stole a diamond ring, expensive silk clothes, a gold necklace, a bicycle, a horse and more.

Even though fooled, Kunjikkavu developed and admiration towards Shanku and gradually fell in love.

Then Shanku with the help of fellow dacoits threatened the groom and made him flee to Kasi.

Then Shanku as music teacher stepped in and offered to marry Kunjikkavu to avoid the embarrassment of having the marriage cancelled.