In 1728, Muhammad Khan Bangash invaded Chhatrasal's kingdom, defeated him and besieged his capital. Chhatrasal secretly wrote to Bajirao requesting his help. But being occupied in a military campaign in Malwa Bajirao did not respond until 1729 when he marched on towards Bundelkhand. Ultimately Bajirao defeated Bangash after reaching Jaitpur near Kulpahar in present Uttar Pradesh. In gratitude, Chattrasal gave Bajirao the hand of his daughter Mastani, dominion over Jhansi, Sagar and Kalpi - amounting to a third of his kingdom. After his marriage to Mastani, he also gifted Bajirao with 33 lakh gold coins and a gold mine. At the time, Bajirao was already married and monogamous by both nature and family tradition. He, however, accepted out of regard for Chattrasal. Back in Pune, the marriage was not generally accepted because Mastani's Muslim heritage. Mastani lived for some time with Bajirao at his palace of Shaniwar Wada in the city of Pune. The palace's north-east corner held Mastani Mahal and had its own external doorway called Mastani Darwaza. Because of his family's intolerance of Mastani, Bajirao later built a separate residence for Mastani at Kothrud in 1734, some distance away from Shaniwar Wada. The site still exists at the Mrutyunjay temple on Karve road. The palace at Kothrud was dismantled and parts of this are displayed at a special section of Raja Dinkar Kelkar Museum.
Mastani bore a son who was named Krishna Rao at birth, within a few months of Bajirao's first wife Kashibai delivering a son. But being born of a half-Muslim mother, the priests refused to conduct the Hinduupanayana ceremony for Krishna Rao. The boy was eventually named Shamsher Bahadur and brought up as a Muslim. After the closely following deaths of Bajirao and Mastani in 1740, Kashibai took the 6 year-old Shamsher Bahadur under her care and raised him as one of her own. Shamsher was bestowed upon a portion of his father’s dominion of Banda and Kalpi. In 1761, he and his army contingent fought alongside the Peshwa in the Third Battle of Panipat between the Marathas and Afghans. He was wounded in that battle and died a few days later at Deeg.
Death
Mastani died in 1740, shortly after Bajirao's death. Her cause of death is still unknown. Mastani was buried in the village of Pabal. Given her association with both Hinduism and Islam, her grave is called both Mastani's samadhi and Mastani's mazar.
Descendants
's son Nawab Ali Bahadur I was given the Rajputana provinces that came in Mastani's dowry - Jhansi, Sagar and Kalpi. In 1858, during the Indian Rebellion of 1857 his son Nawab Ali Bahadur II responded to a rakhi from Rani Laxmibai of Jhansi and fought against the British.Shamsher's successor Ali Bahadur established his authority over large parts of Bundelkhand and became the Nawab of Banda. The descendant of Shamsher Bahadur continued their allegiance to baihi bai fought the English in the Anglo-Maratha War of 1803. His descendant, Ali Bahadur fought alongside with Rani Lakshmibai in First War of Indian Independence of 1857. His descendants were known as Nawabs of Banda. But after the defeat of Ali Bahadur, the British abolished the Banda state. His present descendants lead a simple life in Banda.
