Dear Pravin ,
There is no problem with regards to you having a Son who had a the hole when he was a child. He is healthy now so it should not be a problem . Your HR person who interviewed you probably must have dismayed for two reasons . On reason probably is if they are providing you with Medical Reimbursements . If they are not then the only reason he could have acted the way you said is because he must have felt bad . But quite frankly you will not have a problem with the situation . But a word of caution . Medical facilities here are very expensive especially in the private hospitals . The Government hospitals are not that reliable and i doubt you would want to send your Son there . All the best Dude. Await your arrival here ..
Michelt