Thanks for reverting Kalyani :)
Even I have quit my job to take care of my baby, but am unable to choose between daycare and a nanny. Even I know many friends/colleagues who have kids and have hired a babysitter at home. But I feel if at all I have to choose between a daycare and a baby sitter a daycare would be safer.
Mousumi, before choosing between the two, you should make a note of pros and cons in both the cases. If there is someone at home, a grandmother or a grandmother for instance, who can watch over the nanny, then go for that option. The child will be happy in his own home. But if you are thinking of leaving the house and the baby entirely to a nanny, I don't think its wise enough, unless of course, the nanny is very familiar and has proved trustworthy enough. Otherwise it is always safe to leave your child in the daycare where your child is not alone, there are other kids as well.