The mean absolute error also shows that our method works ≈ 20% better than PBE-D2 methods. Another important aspect of the present work is the use of functional group-based fragmentation scheme. This fragmentation scheme while insensitive to different chemical environments in different systems, is more amenable to application in large systems such as proteins. We also compared the efficacy of different exchange-correlation energies to be used in conjunction to our correction. It turns out that our result, can be used for multiple exchange correlation functionals. However, for B3LYP the correction does not improve the binding energy which is at par with existing literature. The major limitations of our method are twofold: (1) the ad-hoc fragmentation procedure and (2) the lack of screening effects due to local environment. In future, we will investigate ways to include such information effectively in our scheme.