Hey Jyothi! There are no fixed official GMAT dates , you can choose any date according to your convenience and availability. In case you need to retake the GMAT exam you can do so after 16 days. You can take or retake the GMAT exam after every 16 days. According to GMAC, you can register for the GMAT exam 6 months before the Graduate Management Admission Test date or latest by 24 hours before the GMAT exam date, however, the slot is not available at the last moment. Hope this may help you.

Ther eis no last date as such because students can appear for GMAT 5time sa year at maximum with gap of atleast 16 days between any two consecutive attempts . Total of 8 attempts overall allowed.

You can start applying now tgrough bekow mentioned process.

https://studyabroad.careers360.com/articles/gmat-registration