A hybrid composite of Metal Organic Frameworks (MOF) encapsulated in nanocarbon material, wherein the MOFs are grown inside or outside or both side of nano carbon morphologies of the hybrid composite. Such composites may be prepared by a. dissolving and mixing a salt of the metal and a ligand in the ratio ranging between 1:1 to 1:4 (by w/w ratio) by sonicating them to form a precursor mixture; b. adding non-functionalized or functionalized nano-carbon material to the precursor mixture of step (a); c. sonicating the mixture of step (b) followed by heating; d. keeping the slurry obtained at elevated temperature followed by centrifugation.