Short answers, pulled from the story.
Sangram Singh I, known as Rana Sana, was born on the 12th of April 1482 into the Sisodia dynasty. He ascended to the throne of Mewar on the 24th of May 1509 after accumulating more than eighty wounds across his body from constant combat.
Rana Sanga defeated Ibrahim Lodi at the Battle of Khatoli in 1517 and the Battle of Dholpur in 1518 and 1519. He also defeated Lodi at Ranthambore after the Siege of Mandsaur, reducing the Khanzadas of Mewat to submission.
Rana Sanga died in Kalpi in January 1528 or on the 20th of May 1528 after being poisoned by his own nobles. He had taken an oath to not return to Chittor until he had defeated Babur and conquered Delhi.
The confrontation at Khanwa on the 16th of March 1526 ended in a Mughal victory due to their cannons, matchlocks, and other firearms. Rana Sanga was struck by an arrow in mid-battle and was removed from the battle by his brother-in-law Prithviraj Kachwaha of Amber and Prince Maldev Rathore in an unconscious state.
Babur claimed he dispatched emissaries to Chittor to obtain help, but no other contemporary writer mentions Sanga sending an ambassador to Kabul. Modern historians widely reject this claim as Babur deliberately gave wrong facts in his accounts.