Solution:

• Thycaud Ayyavu Swamikal was a spiritualist and a social reformer, the first to break customs related to caste in Kerala when caste restrictions and untouchability were at its extreme.
• Ayyavu wrote several books on Bhakti, Jnana and Yoga in Sanskrit, Tamil and Malayalam. A few were later published by his disciples.

The works that could be identified as his are:

• Brahmotharakandom
• Pazhanidaivam
• Ramayanam Pattu
• Utjaini Mahakali Pancharatnam
• Thiruvarur Murukan
• Kumara Kovil Kuravan
• Ulloor Amarntha Guhan
• Ramayanam Sundarkandom
• Hanuman Paamalai
• Ente Kasiyathra