Ganesh is an eternal household god of modern Hinduism. Defined as remover of obstacles, he is propitiated at the beginning of any undertaking whether, it be a journey, the building of the house or writing of a book or even a letter. It was he who at the dictation of sage Vyasa , wrote the Mahabharat.He is one of five deities of tradition Panchayatan, he is patron deity of a cult known as Ganpatya. His immense popularity is not restricted to Hinduism alone. It has secured a place in Buddhist & Jain worship as well, he has also reached in several countries outside India naturally a festival dedicated to such a god is celebrated with great fervor in Maharashtra, the state to which it’s origin may be traced.

The history of Ganesh or Ganpati in the region which today constitutes Maharashtra`s long. The cult of this deity can be traced back to at least early centuries of Christian Era. During great age of rock-cut architecture in the region between six to nine centuries. Skilled artist carved some of fine representations of deity. In Maharashtra steady rise of Ganesh utsav popularity can be attributed to individual both joints and political leaders. And while Ganesh continues to be worshipped as domestic deity in most Hindu homes in region. His public worship also originated in state and has now spread well beyond its borders.

Ganesh the Benevolent edited by Pratepadiya Pal Marg Publications 

In Maharashtra, the older mantra of "OM NOMAB SIDDAM" as the beginning of alphabet was discarded in favour of "SHREE GANESHAYA NAMAH". It remained so about the end of first decade of 20 century. The expression "SHREE GANESH" is used idiomatically for very basics in much the same manner in which the a be of a thing is used as an expression in English.

There is no evidence in case of region other than Maharashtra that the installed idol was kept or could be kept for longer period. The disposal of worshiped idol is to be made preferably in the sea or running stream or may be made in pond or well, which must be other than one’s own..