Renu,
I am a stay at home mom and went through the same emotions with my first born son. My husband insisted that I leave him for even twice a week for 2-3 hours as he saw i was unable to do anything but taking care of a naughty child. I resisted so much and finally agreed when he turned 2. I used to not bring him to the day care often giving some excuse or the other

. My argument that time was I wasn't working so why can't I take care of him...
Now he's 4 and in kindergarden. I must tell you that even for him it was a welcome change to be with his age group, do things that as moms we can't do (because the daycare people are trained to engage the kids better) and his personality developed by leaps and bounds. Then in 6 months we moved to another city and i put him in 1/2 day day-care for the entire week. When he came to kindergarden he said bye to me the first day itself... now he's very social and not at all clingy.
Don't worry.. our parents generation was different. And from their thinking what they say is right. But you are doing a great help to your child by leaving him in a place where he can be nurtured well...
Latha