We have all heard about the 10th Avatar of Lord Vishnu from our Parents, Grandparents, Teachers, or Friends but we lack conclusive information about him. We completely understand your curiosity and we have got the answer to all your questions regarding 'The Kalki Avatar' of Lord Vishnu.
Appearance
It is believed that Kalki will have a face of a horse and a body of a man or an ordinary appearance like other Lord Vishnu's avatars.
Weapons and Objects
Like other Indian Deities, Kalki will also have some weapons and objects held in his hand and will carry along some. He will hold a Conch, Wheel, sword, and Shield. He will carry a bow and an arrow when he rides a horse. He may also carry a sword.
Place of Birth and Family
He will be born in a village named Shambala, on the thirteenth day of the waxing moon. His parents will be Vishnuyashas (father) and Sumati (mother) and her spouse will be Padmavati and Rama. Still, there is no clarity about his children, the different texts have different names for their children according to Upapuranas Jai and Vijaya will be his children and Kalki Purana mentions meghamala and Balahaka as his children.
Purpose of Birth
He will appear on earth to end the Yug that is Kalyug in Hinduism. The cycle of Yug or existence in Hinduism will restart again from Satyug. He will remove Adharm (unrighteousness) and establish Dharm (righteousness).