Short answers, pulled from the story.
The word Rājaputra appears in the 7th century Bakhshali manuscript from NWFP, where it refers to a mercenary soldier rather than a king's son. In the 8th century Chachnama of Sindh, the term describes elite horsemen serving under ruler Dahir.
Several major subdivisions known as vansh delineate claimed descent from various sources generally divided into three primary vansh: Suryavanshi denotes descent from solar deity Surya, Chandravanshi from lunar deity Chandra, Agnivanshi from fire deity Agni. Agnivanshi clans include Parmar, Chaulukya Solanki, Parihar and Chauhan.
In 1931 census Rajputs comprised 3.7% of British India's population currently region-wise estimates show 35% for Uttarakhand 28% for Himachal Pradesh 9% in Madhya Pradesh 7-8% for Uttar Pradesh 6% for Rajasthan 5% for Gujarat 3.45% for Bihar and 3.4% for Haryana.
Female infanticide practiced by Rajputs low ritual status seeking upward mobility as well as high ritual status. Methods included drowning strangulation poisoning Asphyxia drawing umbilical cord over baby face preventing respiration leaving infant die without food giving poison if survived first few hours applying poisonous plants like Datura madar poppy to mother's breast during breastfeeding.
Rana Hammir defeated Tughlaq army in Singoli in 1336 CE, recapturing Rajasthan from Delhi Sultanate. Rana Kumbha's grandson Rana Sanga turned Mewar into one of greatest powers in northern India during early 16th century.