ITR Filing reg

Experts,

1. We are getting the commission income from LIC Housing Finance.

2..It is more than BEL but less than Rs 5 Lakhs.

3. Books of accounts not be maintained during the FY 2020-21.

4. Which form we need to file either ITR 3 or ITR 4.

5. Can i file the returns myself?

6. Or need to approach any CA and need to get their attestation and UDIN.