TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The group VIB metal is molybdenum. The group VIII metal is cobalt or nickel. The group IIIA element is phosphorus. The source of group VIB metal is ammonium hepta molybdenum. The source of group VIII metal is selected from cobalt nitrate hexahydrate and nickel (II) nitrate hexahydrate. The group IIIA element source also acts as group VIB metal source. Group IIIA element source acting as group VIB metal source is phosphomolybdic acid. Preferred Composition: The catalyst further comprises 0.1 to 5.0 wt.% of a group IIIA element impregnated on the support. An amount of porous activated carbon is in the range of 70 to 85 wt.% based on a total weight of the finished catalyst composition. Aqueous solution further comprises a group IIIA element source, an amount of group III A element source present in the aqueous solution is such that 0.1 to 5.0 of the group IIIA element based on a total weight of the finished catalyst composition is incorporated in the support. Preferred Parameters: The catalyst has a Brunauer-Emmett-Teller (BET) surface area in the range of 50 to 300 m2/g. It has average pore diameter is in the range of 12 -100 Angstrom . It has pore volume in the range of 0.3 to 1.4 cm3/g. The porous activated carbon has: (a) BET surface area in the range of 500 to 1500 (1500) m2/g; (b) bulk density in the range of 0.3 to 0.7 g/cm3; (c) average pore diameter is in the range of 12 to 100 Angstrom ; and (d) pore volume in the range of 0.3 to 1.4 cm3/g. Hydrotreatment reaction zone has liquid hourly space velocity (LHSV) from 0.5/hour to 2/hour. It has hydrogen partial pressure from about 60 bar to about 120 bar.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The vegetable oil is selected from Jatropha oil, Karanjia oil, rubber seed oil, cotton seed oil, waste restaurant oil and/or its mixtures. Preferred Composition: The feed comprises a mixture of vegetable oil and gas oil with up to about 20 wt.% of vegetable oil. Hydrotreatment reaction zone has hydrogen gas (H2) gas to feed ratio from about 400 Nm3/m3 to 600 Nm3/m3. Preferred Process: Hydrotreatment in step (a) is carried out at a temperature from about 350 degrees C to about 400 degrees C. EXAMPLE - No suitable example given.