Introduction :babies are the weak ones in our population, giving birth is a most bliss full and awesomething in one’slife, and they are our future, we are doing all our life planning’s for them new-borns arethe most susceptible group when it comes to adjusting to their new surroundings and they need a great care and attention ;,the objectives of this study is to assess and do the comparison in the selected bio-physical parameters(basic life variables) and sucking response in the babies with less than normal birth weight(1.5-2.4 kg), in the observational and restrained group, research methods in this study non-probability purposive sampling method is used for the collection of sample, the study used, total 60 samples from the selected hospitals of Pune, and data collected during the monthof February and march in 2022, result in this present study carried out for three consecutive days and used an observational technique , to collect data from total 60 samples ,and data collected from the NICU of selected hospitals in Pune city, and the study is showing gradual improvement of bio- physical and sucking response in each post experimental day, than the controlled group, the observational group shows that the improvement in saturation and temperature and stabilization in heart rate and respiratory rate, conclusion of the study shows nesting is a very helpful comfort measure which can use in improvement or the proper development of health status of low birth weight babies, and helps to reduce the stress and mortality and morbidity of the less birth weight babies

Nesting, Bio-Physical Parameters, Sucking, Low Birth Weight Babies.