Jhunjhunu lies in the core of the well known erstwhile Shekhawati province. Thakur Shardul Singh conquered Jhunjhunu in 1730 from Rohilla Khan, the last Nawab of Jhunjhunu.
Shardul Singh has taken Jhunjhunu on a lifelong lease. Now the succeeding seven generations would be benefited.
Shardul Singh had three marriages. He married firstly, in 1698, Thukrani Sahaj Kanwar Biki Ji Sahiba, daughter of Manroop Singh Bika of Nathasar; married secondly, Thukrani Sirey Kanwar Biki Ji Sahiba, daughter of Mukal Singh Bika of Nathasar; and married thirdly Thukrani Bakhat Kanwar Mertani Ji Sahiba, daughter of Devi Singh Mertiya of Poonglota (Marwar), near Degana, and had issue. He died 17 April 1742. He had six sons, namely,
Thakur Jorawar singh, (by the first wife), born at Kant, married and had issue. He died 1745. He built Jorawargarh fort, and was the ancestor of the families of Taen, Malsisar, Gangiyasar, Mandrella, etc.
Thakur Kishan singh, (by the third wife), born 1709, the ancestor of the families of Khetri, Arooka, Seegra, Alsisar etc.
Kunwar Bahadur Singh, (by the third wife), born 1712, died 1732.
Thakur Akhay singh, (by the third wife), born 1713, built Akhegarh Fort. Died without issue in 1750.
Thakur Nawal singh Bahadur (by 3rd wife), born 1715, ancestor of the families of Nawalgarh, Mahensar, Dorasar, Mukundgarh, Narsinghani,Balonda and Mandawa. He died 24 February 1780.
Thakur Keshri singh, (by 3rd wife), born 1728, ancestor of the families of Dundlod, Surajgarh and Bissau, fifth and youngest son, died 1768.
Unfortunately, his son Bahadur Singh expired at an early age. As a result his estate was divided into five equal shares. The administration by his five sons was cumulatively known as Panchpana.
After his death the estate was divided equally among his five sons. Shardul Singh was a man of a religious bent of mind, as he built many temples, such as Kalyan Ji Mandir and Gopinath Ji Ka Mandir
