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Lalbaugcha Raja (Marathi: लालबागचा राजा) is the most famous Sarvajanik Ganapati,  kept at Lalbaug, a prominent locality in Mumbai during Ganesh Chaturti festival. The idol is kept for public display for Eleven days thereafter it is immersed on the auspicious day of Anant Chaturdashi.
It is believed that this Idol of Lord Ganesha is Navsacha Ganpati (Marathi: नवसाचा गणपती) (which means the "one who fulfills all wishes") and hence over 1.5 million people visit this Ganesh Pandal daily during the 10 day Ganesha festival. 
Since the last few years, a few days prior to the Ganesh Chaturthi, a Mukh Darshan Ceremony (Lalbaugcha Raja's first look and photoshoot) is organized by the Lalbaug Sarvajanik Ganeshostav mandal. Last year the ceremony took place on Thursday, September 5, 2013. This unveiling of Lalbaugcha Raja is covered every year by all national and regional channels.
There are two queues for taking blessings of the Lalbaugcha Raja - THE NAVSACHI LINE and MUKH DARSHANACHI LINE.
The Navsachi line is for people who want to get their wishes fulfilled. In this line you get to go on the stage and touch the feet of Lalbaugcha Raja and take his blessings so that all your wishes get fulfilled. However this line attracts huge public and it takes around 25 – 30 and sometimes up to 40 hours to get darshan in this line.
The second line in meant for Mukh darshan i.e., to get a glimpse of Lalbaugcha Raja Ganesha Idol from some distance without going onto the stage. This line also attracts huge public and it takes around 5 – 8 hours and sometimes up to 12 – 14 hours to get darshan in this line as well, especially on Weekends. 
In 2014, the Lalbaugcha Raja Ganpati is now in its 80th year.
Lalbaugcha Raja is the popular Ganesh Idol of the Lalbaugcha Raja Sarvajanik Ganeshotsav Mandal. The Mandal, formerly known as Sarvajanik Ganeshotsav Mandal, Lalbaug was founded in 1934 at Lalbaug Market.
The Mandal, formarly known as 'Sarvajanik Ganeshotsav Mandal, Lalbaug' was founded in 1934, because of a vow (Nav'as) for construction of the present Lalbaug Market at its existing place. The market place at Peru Chawl was shut down in 1932. Hence, the fishermen and vendors who used to sit in the open place vowed to Ganesha for permanent place for their market. With the consistent efforts and support of the then local Councillor-Late Shri. Kuwarji Jethabhai Shah, Dr. V. B. Korgaonkar, Shri. Nakhawa Kokam Mama, Bhausaheb Shinde, Dr. U. A. Rao and the local residents, the landlord Rajabai Tayyabali agreed to give a plot for construction of a market. As fulfillment of their wish, the fisherman and the traders established the Ganesh Idol on 12 September 1934. The idol was dressed in the customary fashion of fisherman. Since that day onwards, this Lord Ganesh has become popular as it fulfills the wishes of devotees. The Mandal was formed in the era when the freedom struggle was at its peak.
- First Look of Lalbaugcha Raja 2012
- "Mumbaikars get their first glimpse of Lalbaugcha Raja". The Times of India (Mumbai, India). Times News Network. 1 September 2008. Retrieved 16 July 2012.
- Lalbaugcha Raja 2013 First Look
- About Lalbaugcha Raja Ganpati
- "Sculptor Ratnakar at his workshop". MiD DAY (Mumbai, India). 29 September 2004. Retrieved 16 July 2012.
- Pansare, Upneet (10 September 2007). "Since 1934, this family has been making Ganesh idols". The Indian Express (Mumbai, India). Retrieved 16 July 2012.
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