Upanyasam on the 160th sutram of Acharya Hrudayam, explaining that Tirumala stands for the quality of vAthsalyam, in Tamil, by TCA Venkatesan
https://srivaishnava.bandcamp.com/album/acharya-hrudayam-tamil
Acharya Hrudayam 160
Srivaishnava Sampradayam
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