President Election 2022: Nominations for Presidential election begin; What is the process of nomination?

President Election Nomination 2022: Presidential nomination 2022 began with the issuance of the notification calling the electors to fill up the vacancy at the country’s highest constitutional post. 

source https://www.jagranjosh.com/current-affairs/president-election-2022-nominations-for-presidential-election-begin-what-is-the-process-of-nomination-1655356399-1