my baby is sitting without support not crawl. not standing even i support . she bend her knees . using toes

A. Sitting is fine not an issue as you mention crawling can be seen between the time of 9 to 11 months and standing with support and walking between the time of 9 to 12 months right now the child is not having enough strength so you should consult your doctor and start with a calcium supplement and massage their legs twice with warm mustard oil