Explanation:

 Father of the Nation Mahatma Gandhi visited Assam 4 (four) times. The first visit of Mahatma Gandhi took place in the year 1921. He was invited by APCC to propagate the message of non-cooperation in Assam. Gandhi’s second Assam visit was in 1926. He attended the 41st Congress session held at Pandu in Guwahati. His third visit was in 1934. Mahatma Gandhi visited Assam fourth time in the year 1946. It was his last visit, during which he inaugurated Assam branch of Kasturba Gandhi National Memorial Trust and a Gram Sevikas Vidyalaya. He stayed at Sarania hill in Guwahati.