Among the 12 Alwars, Periyazhwar, Andal, Kulasekarazhwar, Thiruppanazhwar, Thirumazhisaiazhwar, Poigaiazhwar, Bhoothathazhwar, Peyazhwar, Nammazhwar and Thirumangaiazhwar have done mangalasasanam in Thirumala. Poigaialwar - 10 paasurams. Boothathalwar - 9 Paasurams. Peialwar - 19 Paasurams. Perialwar - 7 Paasurams. Andal - 16 Paasurams. Thruppaan alwar - 2 Paasurams. Kulasekaralwar - 11 Paasurams. Thirumazhisaialwar - 14 Paasurams. Nammalwar - 52 Paasurams. Thirumangaialwar - 62 Paasurams. Total - 202 Paasurams. The timing of the first three Alwars is during late 5th and early 6th centuries A.D. So was this a Murugan shrine before that? Silapathikaram makes a reference to Thirumala and is timed even earlier than 5 AD. Was it "converted" even before that then?