Ganesha (AKA "Ganapati", "Vinayaka", or numerous other names) is one of the best-known and most worshipped deities in the Hindu pantheon. His image is found throughout India, Nepal, Sri Lanka, Fiji, Thailand, Mauritius, Bali (Indonesia) and Bangladesh. Hindu denominations worship him regardless of affiliations. Devotion to Ganesha is widely diffused and extends to Jains and Buddhists.
In "Road to India", Stewie and Brian go to India to meet Padma. Stewie jokes that if they're hungry, they should go to that "New Deli" that opened up. Ganesha appears and pulls of a pair of rim shots for that pun, since Ganesha has four arms. Stewie thanked him for enhancing the comedy of his pun like that.