Hi Age appropriate development. Sitting with support at this age is appropriate Early intervention for sitting: Make the child sit, provide support and toys, then slowly reduce support. Make her come to sitting position, hold her in this position and then make her lie down (5 minutes × four times a day). Make the child sit across his mother’s knee, just tilt the child forward and sideways, so that he/she outstretches the hand. This helps in development of righting reflex. Kindly consult with Paediatrician for better assessment and management

Hello ! At ths age babies can sit with support only .