Can an Ignou student appear for December TEE if he has taken admission in July session?

No, you cannot appear for IGNOU December TEE if you have taken admission in the July session.

For instance, you have taken admission to the July 2022 session. You are required to submit your assignments before 31st March 2023. Only after submitting your assignments, you are eligible for the TEE Exam, and that too in the month of June 2023.

In special cases, like you were not able to give some exams you can appear for the December TEE exams though.