Applying PR for infant

[sandia]

Myself and husband are PR holders of Singapore. I want to apply PR for my 6 months old baby who is residing with me in my home country. Need some advice from you friends..

1. Can my husband apply PR in baby's absence?
2. If so, Will my husband be the applicant or the sponsor, Who needs to sign the application?
3. Is it necessary that my information and documents need to be produced?

Really confused with the form4 filling up procedure. .

I would really appreciate the member's response to my query. Please help me out..