Dear Sapna, <br> The baby is simply too small. Make sure your baby's neck is well formed and there's a little back support too else the baby will wobble.

Is she holding her neck up properly? If she is only then you can make the baby sit with support but only for a few mins daily

As of now let her sit up with some back rest or back support.

If she is trying to sit , u can make her sit with a support. If she is not comfortable doing so, pls don't force her.

She is trying that means she is getting ready for it..so help her but small intervals so that it doesn't hurt the back