The Dandi March set out on 12 March 1930 from

Explanation

1. 01

   Gandhi left Sabarmati Ashram, near Ahmedabad, at half past six in the morning with 79 followers.

2. 02

   They covered 241 miles to Dandi in 24 days.

3. 03

   Sevagram, near Wardha, became his base later; Porbandar is his birthplace, not the starting point.