After bathing in the morning, light a lamp and sit in front of it facing the east direction.
Chant the following to show your respect to Lord Ganesha and the universal Guru respectively before you start the ritual
Om gum ganapathaye namaha
Om sri gurubhyo namah
Now place a vessel of sesame seeds in front of you. Using your right hand thumb and ring finger, take a pinch of the sesame seeds. Now chant the following sloka
Then shower the base of the lamp with the sesame seeds (like you do with flowers).
Repeat the above showering of sesame seeds and the sloka 108 times.
After you finish the prayer, either mix the sesame seeds with ghee and rice and then give it to crows, or, mix it with jaggery and consume it yourself.
Repeat this ritual for 21 or 41 days. It will bring the full blessings of lord ayyappan to you and your family, hence ensuring the removal of miseries and distress. The mandalakala is said to be most auspicious for the pooja of lord Ayyapa. The mandalakala starts from around November 17th usually and lasts for 41 days (one mandala). Make use of this holy time to be closer to lord ayyapan and get his infinite blessings. . Om