after giving my seven month old baby khichdi... i saw some undigested daal in her stool... what will i do now??

Rishika, that's fine. Some undigested food will come out. I was nervous too after I gave my boy beetroot.
Here are some articles you can go through just to understand.
Weaning In the Initial Months

A Beginner’s Guide to Weaning foods

You can blend khichadi properly and then feed baby.. don’t worry if baby is digesting good then it’s fine.. give lots of liquids or water