Visitor Visa - B2

Hi, our (Me, My husband and my 7 year old daughter) visa interview is scheduled on 27 May 2016. I am working with a BPO for past one year and my annual salary is 3.75 lacs pa. I have more than 10 years of experience. My husband is working as a freelance consultant for a broking firm. He is earning around 4.5 to 5.5 lacs pa. However the payment is not monthly basis hence we did not put that in his application form. He also has more than 10 years of working experience.We have three properties here and that is mentioned on our application. We have sufficient balance in account with some amount invested in shares. I am visiting to my relative who is a US citizen. we have his invite letter and all other necessary documents. My relative had sponsored visa for my brother-in-law and sister-in-law (Both application were made separately) in past. Both of them came back to India within a month of their US trip. Also my relative visited India thrice in last one year. He had sent his documents to us Last year also however due to some reason we didn't apply for the visa and this time I am applying. My query is my husband did not mentioned his monthly salary in application form can cause rejection of our application?