Vismaya Kumar: 12-year-old girl posts video asking, 'Why did you kill my father?

Vismaya Kumar, from Kannur, India, communicates her message through a series of cards

Vismaya Kumar holding up a card that reads: "I only see darkness in my future" (Screengrab)

A 12-year-old girl has posted a powerful video asking why her father was killed.

Vismaya Kumar, from Kannur, India, communicates her message through a series of cards and is going viral on social media.

Her father, Santhosh Kumar, was killed inside his home in January.

The 52-year-old was a political activist for Rashtriya Swayamsevak Sangh (RSS), a right-wing Hindu nationalist organisation which is regarded as the ideological fountainhead of the Bharatiya Janata Party (BJP), Narendra Modi’s party.

"My father wanted to fulfil my dreams. A night swept away all my dreams," Vismaya said in the video, according to NDTV.

"His only mistake was he supported RSS and BJP. I see only darkness in my future. They murdered not just my dad but my dreams and future. I see only darkness, complete darkness. I have not yet (got the answer), why they killed my father."

Six activists have been arrested in connection with the killing.

Kannur has a history of political violence and activists from all sides of the political spectrum have been killed.

Estimates suggest more than 100 people have died in the region since 1991.