Hello aspirant,

As the exam was postponed due to the pandemic, there is no new notification as of now. Earlier the date was announced for 13th June, 2021. Please keep checking their official website for latest updates. Below is the link for the same

NCERT (https://ncert.nic.in/national-talent-examination.php)

You could also mail the authorities for the same: ntsexam.ncert@gov.in

I hope this information helps

Thank you