Dear Taxpayer,
New Forms 10B and 10BB are re-notified pursuant to Notification no. 07/20223, dated February 21, 2023. Forms with the titles Form 10B (A.Y. 2023–24 onwards) and Form 10BB (A.Y. 2023–24 onwards) are available on the e-filing portal. Both forms are available for submission starting with A.Y. 2023–24. Kindly file the form within due date to avoid any legal implication.
For more information, you may refer the FAQs available on e-filling portal from the below links 
Form 10B (A.Y. 2023-24 onwards): Form 10B (A.Y. 2023-24 onwards) FAQs | Income Tax Department
Form 10BB(A.Y. 2023-24 onwards): Form 10BB (A.Y. 2023-24 onwards) FAQs | Income Tax Department
Additionally, kindly note that old Forms available with names 10B and 10BB are still available for filing up to A.Y. 2022–2023.