The compressed molecular shells around the central clusters in HII regions break up into morphologically distinct fragments due to the UV light from the central OB stars. Tiny, dense, sub-solar mass clumps called globulettes are one of such distinct features. The objective of this study is to study the globulettes and the shells in the Rosette Nebula. Their extinction, surface brightness in the cores and rims, and density have been estimated through NIR observations. The star-formation activity has also been studied. The NIR JHKs photometry is used in creating visual extinction maps and studying the density of individual globulettes.