Lakhs of devotees from various parts of the country and abroad thronged the Kamakhya temple here in Assam to take part in the annual Ambubachi fair that started on Wednesday.The temple authorities closed the main door of the sanctum sanctorum from Wednesday morning to lock the Goddess in for her annual menstrual period.The temple will reopen on Sunday morning and the lakhs of devotees will be allowed to visit and worship the Goddess. During this period, Hindus do not worship and farmers do not plough their land.Kamrup (Metro) Deputy Commissioner M. Angamuthu said the district administration had made elaborate arrangements to ensure that devotees do not face any problem.The Kamakhya temple is one of the better known Shaktipeeths and is dedicated to Goddess Durga (Shakti). All the temples in Assam will remain closed during this period of Ambubachi.