"Ambubachi Mela" is held in which place?

The correct answer is Guwahati. 

Key Points

• The Ambubachi Mela is held annually at the Kamakhya Temple in Guwahati, Assam, India.
• It is a four-day festival to mark the menstruation of the Goddess Kamakhya, believed to be the earth's period of menstruation.
• During this time the temple remains closed for three days, and it is believed that the earth becomes unclean.
• On the fourth day, the temple reopens and a large number of devotees visit to receive prasad (holy offering).​

Additional Information

• Pune:
  • The city of Pune is famous for the Osho International Meditation Resort, hence, the Osho Festival of Music and Meditation attracts many visitors from around the world.
  • Pune also hosts the Sawai Gandharva Bhimsen Festival, one of the largest Indian Classical music festivals in India.
• Patna:
  • The city of Patna in Bihar is famous for the Chhath Puja, an ancient Hindu festival dedicated to the Sun God Surya.
  • The Chhath Puja involves rigorous rituals, including fasting and standing in water for long periods.
• Lucknow:
  • Lucknow, the capital city of Uttar Pradesh, is known for the Muharram festival, which is observed to mourn the death of Imam Hussain, the grandson of Prophet Mohammed.
  • The city is famous for the elaborate processions carried out during Muharram.
  • It also hosts Lucknow Mahotsav, an annual event showcasing arts, crafts, and the rich cultural heritage of Lucknow.