Muhurat of establishment according to the lagna
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Story of Ganesh birth
There are many stories about the birth of Lord Ganesha in the Puranas, but the story which is considered to be the most popular and authentic is presented here. According to the legend, Goddess Parvati once went to bathe. Before bathing he made an effigy of his body and named it Ganesh. Giving his son a muddle and giving him the task of guarding the door, he said that while I bathe, do not let any man come in. Saying so, Parvati went to bathe and started guarding the Ganesh gate.
Lord Shiva came and started going to Parvati's room
Meanwhile, Lord Shiva came and started going to Parvati's room. This little boy sitting at the gate prevented them from going inside. When Shiva asked for his introduction, he called himself the son of Parvati. Knowing this to be untrue, Shivji became enraged and separated Ganesh from his head by his trident. Unaware of such evil, Parvati asked the reason for seeing Shivji angry, and Shivaji said, "If a child was preventing me from going inside, then I separated him from the head and gave him appropriate punishment."
Mother Parvati was shocked
Mother Parvati was stunned to listen to Shiva. He said that he was my son whom I had just made out of my body and ordered to guard the gate. You killed my son. She started mourning and prayed to Shiva that she should bring her son alive somehow. Shivji told his people that whatever creature is born immediately and cut off the head of the first person who is on the way. The Ganas found an elephant's newborn and beheaded. Shiva resurrected him by attaching that head to Ganesha's torso. Parvati was very happy to get her son back. This incident happened on Bhadrapad Shukla Chaturthi, hence its name Ganesh Chaturthi.
Method of worship
On the fourth day of the bright half of the month of Bhadrapad, one should wake up early in the morning and retire from the bath. After this, they should be made Ganpati of the soil and establish them in auspicious time according to the law. Modak is very dear to Ganapati ji, therefore, 21 modaks should be offered at the time of worship. Similarly, Ganesh ji also likes durva very much, so green durva must be kept in worship. While performing the puja, take 21 sprouts of green durva, chant the following two names of Ganesh ji and offer them Durwankur. These two names are Vakratund, Ekadanta, Karnapingaksha, Gajavaktra, Lombodar, Viktamev, Vighnarajendra, Dhumavarna, Bhalchandra, Vinayaka, Ganapati, Gajanan. After the puja, donate to 10 Modak Brahmins and receive 11 with your family. In this way, the festival of his birth is celebrated with the worship of Ganapati ji for a full 10 days by law. The devotees who do this show full grace to Vighnaharta.