अंग गौर शिर गंग बहाये । मुण्डमाल तन छार लगाये ॥ On Trayodashi (13th day in the dark and vibrant fortnights) just one should really invite a pandit and devotely make offerings to Lord Shiva. Those that fast and pray to Lord Shiva on Trayodashi are constantly healthful and prosperous. https://shivchalisas.com