Explanation:

Kochrab was the first Ashram established by Gandhiji in India in 1915 CE, it was a pioneering centre for students of Gandhian ideas to practise Satyagraha, self-sufficiency, Swadeshi,work for the upliftment of the poor, women and untouchables, and public education and sanitation.Sabarmati Ashram was the residence of Mahatma Gandhi for over twelve years (1917-1930 CE) and laboratory for his social experiments, e.g. agriculture and literacy promotion.It was also from here that in 1930, Mahatma Gandhi started his Dandi March.