Jaipur is named after Maharaja Sawai Jai Singh II, who built the city in 1727 AD. Jaipur takes pride in being the first planned city of India. Maharaja Jai Singh is descendent of the Kachwaha Rajputs. Mughals helped the Kachwaha Rajputs against Sisodia Rajputs of Mewar making them powerful. The kingdoms of Mewar (Udaipur) and Marwar (Jodhpur) were ruled by them from the glorious Amber Fort.
The kingdom saw great heights with Jai Singh, who built his capital around Amer Fort and Jaipur. The city was eventually developed by chief architect from Bengal, Vidhyadhar Bhattacharya following the principles of Shilpa Shastra and referencing the ancient Indian knowledge on astronomy.
In 1876, Maharaja Ram Singh adorned the city in pink color, which is supposed to be associated with hospitality, to welcome the Prince of Wales (later King Edward VII) to the city. And thus it acquired the name Pink City. After India got independence, Jaipur merged with Rajasthan.