DigitalDestiny said:Problem is, if you don't declare and they find out - then it's a straight forward mis-representation. An absolutely No-No.
Rules say you have to declare all the dependents whether accompanying or not. Even if there is no custody, then also court documents have to be submitted to prove the same. The officers won't go by applicants words that they don't have custody or don't want to sponsor their dependents in future. For everything, OINP/IRCC will ask for rock solid documents with notarizations, translations, etc.
Suggest you to consult some immigration law firm.
Thank you for your advise. Now that really worries me. Do you think it is still advisable to send OINP change in information form to add info of the child?