Which itr to use

Insurance commission is business income. So ITR 4

Use ITR 4. You cannot use ITR 4 (Sugam).

Thank you guys for the replies. 

Actually, since I left the job, I got the gratuity exemption and leave encashment money of about 20,000. So, I don't think I can use ITR1. 

Please suggest. 

In my form 16, they are appearing under, Less Allowance to the extent exempt u/s 10

Also, as amount is greater than 5000, I am not sure about ITR1.