The worship of Shakti was a prominent religious tradition in ancient Assam, evident in temples like:

Kamakhya Temple
Umananda Temple
Navagraha Temple
Mahabhairav Temple

The correct answer is: a) Kamakhya Temple.

Kamakhya Temple is a Hindu temple dedicated to the goddess Shakti, located in the Nilachal Hill in Guwahati, Assam, India. It is one of the most important Shakti Peethas, or sacred sites of Shakti, and is one of the 51 Shakti Peethas associated with the goddess Sati. The temple is believed to be the place where the yoni, or vulva, of Sati fell after she was immolated by her father Daksha Prajapati.

The temple is a major pilgrimage destination for Hindus from all over India. The temple is also a popular tourist destination, and is known for its annual Ambubachi Mela, a five-day festival that takes place in June or July.

The other options are incorrect because:

  • Umananda Temple is a Hindu temple dedicated to the god Shiva, located on Peacock Island in the Brahmaputra River in Guwahati, Assam, India.
  • Navagraha Temple is a Hindu temple dedicated to the nine planets, located in the city of Guwahati, Assam, India.
  • Mahabhairav Temple is a Hindu temple dedicated to the god Shiva, located in the city of Guwahati, Assam, India.