My baby is 8 months old however still he has not started to sit independently. Should i be worried? Or this normal.

A. Hai good afternoon !! Babies start crawling,sitting around 6-8 months but for few takes time 8-9 months no worries. Check if baby has reached other milestones roll over,holding neck ,crawling,holding things ,observing surroundings,expressions ,listening to voices . Give calcium rich foods - Cerelac,fruits,vegetable puriees,mashes,kichdi,porridges with ghee,nuts powder.