You have not mentioned which exam you are talking about but since JEE Mains was conducted on this date and in shifts, I am assuming you are asking about that. If not, please mention the exam in the comments section.

The official answer key for JEE Mains January session is supposed to be released today on their official website. Till then, you can go through this year's JEE Mains question papers and answer key released by experts from the given link: https://engineering.careers360.com/articles/jee-main-answer-key/amp

You can find the slot wise question papers and answer key there. For 9th January morning session question paper and answer key, visit: https://learn.careers360.com/engineering/jee-main-2020-question-paper-with-solution-jan-9th-first-shift/