Ambubachi Mela is a major Hindu festival celebrated at:

Kamakhya Temple
Umananda Temple
Navagraha Temple
Mahabhairav Temple

The correct answer is: a) Kamakhya Temple.

Ambubachi Mela is a major Hindu festival celebrated at the Kamakhya Temple in Guwahati, Assam, India. The festival is held annually for three days in the month of June or July, during which the temple is closed to the public. The festival marks the annual menstrual cycle of the goddess Shakti, who is worshipped at the temple.

The Kamakhya Temple is one of the most important Shakti Peethas, or sacred sites of Shakti, in India. The temple is located on the Nilachal Hill, overlooking the Brahmaputra River. The temple is dedicated to the goddess Kamakhya, who is also known as the “Mother Goddess”.

The festival of Ambubachi Mela is a major tourist attraction in Assam. The festival is celebrated with great pomp and show, and attracts thousands of devotees from all over India. The main attraction of the festival is the ritual bathing of the goddess’s idol in a sacred pool of water.

The other options are incorrect because:

  • Umananda Temple is a Hindu temple located on Peacock Island in the Brahmaputra River, near Guwahati, Assam, India. The temple is dedicated to the god Shiva.
  • Navagraha Temple is a Hindu temple located in the city of Bhubaneswar, Odisha, India. The temple is dedicated to the nine planets of Hindu astrology.
  • Mahabhairav Temple is a Hindu temple located in the city of Ujjain, Madhya Pradesh, India. The temple is dedicated to the god Shiva.