This is the website where i want to use autofill https://sso.rajasthan.gov.in/ . I am attaching the steps to see my requirements and better understanding of my requirements.

Actually, i want to book tickets for a wildlife centaury for tourists so i need a plugin or autofill desktop app to fill my customers details in required field. 

I tried with free autofill plugin i.e autofill which is available on google chrome store. This plugin works fine with single or two users but it will through error whenever we fill 5-10 users detail at a time. 

so i am looking for the one who can resolve this error or build new plugin / desktop app for me .