Read the passage given below and answer the questions:

'The repertoire of satyagraha' 

The fusion of foreign power and capital was the focus of social protest during India's nationalist struggle. Mahatma Gandhi wore khadi, hand-spun, hand-woven cloth, to support Indian cotton growers, spinners and weavers whose livelihoods had been destroyed by the government policy of favouring mill-made cloth. The legendary Dandi March to make salt was a protest against British taxation policies that placed a huge burden on consumers of basic commodities in order to benefit the empire. Gandhi took items of everyday mass consumption like cloth and salt, and transformed them into symbols of resistance. 

People in the Ezhava Community in Kerala were led by a social reformer to change their social practices. The name of reformer is:

Narayana Guru