It could be because of the history that led to the occurrence of the Varalakshmi vratam that we do not celebrate it. It is stated a woman desirous of achieving wealth prayed to Thayar and observed fast which was later followed as a practice. As it was meant for material benefits, we Srivaishnava-s do not follow such practices and we do anything only as a service, so Srivaishnava-s do not celebrate such festivities. Despite this, some Srivaishnava women who are invited to such festivities accept thamboolam.