Sri   Kasiviswanatha Gnana  desikar  succeeded  him on the 16th of  October  1986.  He brought all the mutts under the control of the Koviloor mutt  and ordered  the  respective mutts to maintain their  accounts  after regularising  them.  He conducted a meeting of  'Thinkers  Forum' every  month; got the damaged temple cars repaired.  He made  the mutt  run classes on Vedanta and render social service;  provided education, food, clothes and medical aid to the poor. 

 He was deeply attached to 'Thirumandiram',  'Siddhar  Padal' and   preached  Kandan's Thirumandiram  to  all.   He   had   an un detachable  devotion to Ambal and always recited Her 'Nama'  as 'Devi'.  He blessed all with affection by smearing the  holy  ash (vibuthi) on the forehead. He published children's books such as 'Thambippappa', 'Padithuparu', in order to inculcate spirituality among children.