Observed on Śukla-Saptamī tithi of Vaiśākha (lunar) month. Worship Surya Bhagavan in a vessel (kumbha) filled with sugar, followed by dAnam of the same.

शर्करासप्तमी चैव वाजिमेधफलप्रदा। सर्वदुःखप्रशमनी सर्वसम्पत्प्रदायिनी॥