Thanks for submitting your question.
 
Here's a link to the Indiana State Board of Education site's homeschool enrollment form. It states that they do not track nor do they want to know student names, so I'm assuming they do not assign student i.d. numbers, but they do require that the state be notified of homeschooling.
 
https://dc.doe.state.in.us/DOEOnline/HomeSchool/entry.aspx
 
Here's another Indiana State Board of Education link that has additional information on homeschooling in the state.
 
http://www.doe.in.gov/sservices/homeschool.html
 
Best regards,
Lori