my baby is 10months old but she is not sitting alone without any support

A. Hello good morning !! By 6-8 months babies sit without support , but few take 9-10 months . If the baby is sitting with the support then no worries ,make the baby sit on your lap daily for 10-15 minutes ,with the support of the pillow ;wall under your presence . Give calcium,protein rich foods - Fruit and vegetable purie,mash,cerelac,porridges, ragi malt ,ghee,curd,paneer, nuts powder in cerelac,kheer,porridges.