Hello,

You have taken admission in which course of master degree, you haven't mentioned the details, nevertheless if it's not any professional degree course, then most definitely it's not semester wise, it's yearly basis for which you were required to appear for June TEE which you couldn't but nevertheless you can appear for December TEE and you need to submit your assignments prior to it, you can stay updated at ignou.ac.in (http://ignou.ac.in) for more details regarding this.