when the optionentry statrs in ap

You haven't mentioned which exams you are talking about. But your profile shows that you are an Engineering aspirant of Andhra Pradesh. Andhra Pradesh State Council for Higher Education has not yet announced the dates for option entry for AP eamcet counselling 2020. The dates for option entry was expected to release on second or third week of November 2020. But it has not yet announced. So there can be a delay. For now keep checking the official website for regular updates and also check out this link for more Information on AP EAMCET 2020 Counselling https://engineering.careers360.com/articles/ap-eamcet-counselling