Purposeful movement is staed at
Palmer grasp goes at age of 4 monthTransfer object hand to hand 5.5 monthThe purposeful movement staed when there is an absence of Palmer group, so an above option best answer is 6 month(Refer: Nelson's Textbook of Pediatrics, SAE, 1st edition, pg no. 2798)
6 months
8 months
9 months
12 months
All India exam