The Unique Identification Authority of India (UIDAI) was set up in 2009 to issue a 12 digit unique identity number to every resident of India. Nandan Nilekani, the co-founder of Infosys, was appointed as the first Chairman of UIDAI with the rank of a Cabinet Minister.
The project and the identity number it issues came to be called Aadhaar, a Hindi word meaning foundation or base. The name was chosen because the number was meant to serve as a foundational identity document for accessing government services, banking, and welfare schemes.
Sambhav, Sambandh, and Alekh are not names associated with this project. They do not correspond to any official government identity initiative from this period.
The correct answer is option 1, Aadhaar.