Maha Ganapati is one among the 32 forms of Ganesha. Worship of this form of Ganapathy is highly meritorious and a devotee is blessed with happiness, intellect and prosperity.
Dashilishtam priyaya sa padmakaraya svankashtayah santatam
Beejapoora gadekshu karmuka laschhakrabja pashotapala
Vreehagra svavishaana ratna kalasham hastaih vahantam bhaje
Maha Ganapati mantra is
Hasteemdranana minduchuda marunachayam trinetram rasahDashilishtam priyaya sa padmakaraya svankashtayah santatam
Beejapoora gadekshu karmuka laschhakrabja pashotapala
Vreehagra svavishaana ratna kalasham hastaih vahantam bhaje
This is a unique form of Ganesha as He has a third eye and crescent moon on his head just like Shiva.
Maha Ganapati has 10 hands. His consort sits on his left lap. The ten hands hold lily flower, mango, broken tusk, conch, wheel, arrow, noose, paddy bunch, jewel pot and sugarcane.
This form of Ganesha is believed to bless a devotee with glory and prosperity.