Leave encashment after resignation in Private company

Hi experts,

My last working day at my previous company was on 7th Mar, 2021. I received leave encashment after some months and the ex-employer has provided the FY 21-22 Form 16 having the leave encashment payment details.

1. Please tell how should I mention this payment in current ITR filing?

2. Will form 10E be required to get relief u./s. 89?

3. Which annexure should be selected in Form 10E for leave encashment on resignation?

4. How do I mention amount after exemption under 10(10AA) while filling Form 10E and ITR?

Thank you.