The Maharaja of Kasi conducted Vidwadh Sadas and invited all Heads of Mutts from all over  India.  Mahaperiyavaa asked  Sri Subramania Sastrigal to participate in the "Sadas' on His behalf!  Accordingly, Subramania Sastrigal went to Kasi and was given warm reception by the Maharaja.  The Sadas was conducted  for one week. All the Pandits who  the attended  the Sadas, praised Subramania Sastrigal for His talent in all subjects.  He was declared "ASHTAVADAN".

Sastrigal  returned to Madras Central and was given warm reception by the officials of Kamakoti Peetam with Nadaswaram, Band etc as per the request  by Sri Mahaperiyavaa. Kasi Raja awarded 'Sannath' and Brugas. Subramania Sastrigal accompanied by Mutt staff reached Kanchi and offered Vandanams to Periavaa and placed all the Sannath at the Lotus feet of Mahaperiyavaa. 

Thus, Sri Subramania Sastrigal (Yatheendraal) became the "Asthana Pandit"  of Kamakoti Peetam !!