Have a dare to solve it !!!

This one is real brain teaser & tricky one. Requires some MathaLogic i.e.. skills in Mathematics + Logics.
This was put forth by Dr. Jayant Naralikar , world renowned Scientist.
See if you can solve this.........
A toy vendor is selling toys from door to door.
He visits a house & asks the owner lady to buy toys for her kids.
Lady, being a smart customer, says to Toy Vendor "If you can tell me the Ages of my 3 Kids correctly then only I will buy Toys from you."
Toy Vendor says "OK M'am , Pl. give me some clue"
"If you multiply ages of my 3 kids you get figure 36. And if you add ages of my 3 kids you get House Number of my neighbour" replies Lady.
Toy Vendor thinks for a while , goes & notes Number of Neighbour's house & returns saying "M'am , some more information is required"
"OK, my eldest daughter plays Harmonium very nicely" replies Lady.
"Oh, in that case I have got answer to your question" replies Toy Vendor & tells Lady Ages of her Kids.
Can you tell ages of Lady's Kids ?
What is House Number of Lady's Neighbour ??