TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The blend (B1) comprises (total mass.%) : 10C linear alcohol (0-15%), 12-14C linear alcohol with 1% hydrocarbon (40-70%), 12-14C linear alcohol with 6% hydrocarbon (30-60%) and 16-18C linear alcohol (3-20%). The molar ratio of alcohol:methacrylic acid is 1:1 to 1:1.1. The ester includes at least one catalyst (C1), at least one solvent (S1) and at least two inhibitors. The polymer of the ester includes at least one solvent (S2) and at least one catalyst (C2). The composition is in the form of yellow to brown transparent viscous liquid. Preferred Components: The catalyst (C1) is selected from p-toluene sulfonic acid, methane sulfonic acid or sulfuric acid. The inhibitor is selected from hydroquinone, methoxyhydroquinone, phenothiazine, copper chloride, copper acetate, copper fillings and methylene blue. The solvent (S1) is selected from toluene, benzene, xylene, ethyl benzene or hexane. The solvent (S2) is selected from toluene, benzene, xylene, mixed xylene or ethyl benzene. The catalyst (C2) is selected from benzoyl peroxide, di-tertiary butyl peroxide or azobisisobutyronitrile. The diluent is selected from mineral oil or coco methyl ester. Preferred Process: The process involves washing the ester with an alkali solution; dehydrating the ester by heating under vacuum; azeotropically dehydrating the ester; adding of catalyst (C2) in 3 stages, where first portion of the catalyst (C2) is added at the start of the polymerization reaction, second portion is added when the reaction temperature is 92 degrees C and third portion of the catalyst (C2) is added when the reaction temperature is 95 degrees C; the polymerization is allowed to proceed for 6-12 hours. The mass ratio of ester to catalyst (C2) is 1:0.003 to 1:0.010. The mass ratio of the polymer to diluent is 1:0.66 to 1:1.5. The distillation step is done in two stages, where first stage involves distilling off the solvent (S2) at atmospheric pressure and at 120-150 degrees C and second stage involves vacuum distilling of traces of solvent (S2); diluting the polymer with a diluent. The polymerization temperature is controlled by external cooling or adding the catalyst (II). EXAMPLE - 12-14C linear alcohol containing 1% hydrocarbon (198 g), 12-14C linear alcohol containing 6% hydrocarbon (198 g), 16-18C linear alcohol (264 g), p-toluene sulfonic acid (12.5 g), phosphorous acid (5 g), hydroquinone (1.2 parts), methoxy hydroquinone (0.34 g), phenothiazine A (0.068 g) and toluene (680 g) was charged into four neck round bottom flask to form reaction mixture. The reaction mixture was heated slowly with stirring to 90 degrees C. Further, methacrylic acid (264 g) in toluene (130 g) was added to the reaction mixture in the flask within 15 minutes to form resultant mixture. To this resultant mixture air was purged and was heated up to 105 degrees C. Water (59 g) was distilled out by azeotropic distillation and crude ester (1685 g) was separated out containing less than 2% unreacted alcohol and acid value less than 10. Crude ester obtained (1685 g) was warmed to 35 degrees C and 4% sodium hydroxide solution (189.5 g) was added to the ester under mixing. The mass was mixed for 15 minutes and allowed to settle at 35 degrees C for 1 hour. The lower aqueous layer was separated and crude ester (1660 g) was obtained. The crude ester was caustic washed and water (337 g) at 35 degrees C was added and stirred for 5 minutes and allowed to settle for 3 hours. Water was separated as lower layer. The ester solution thus obtained was filtered and clear transparent ester (E1) (1609 g) was obtained containing less than 0.2% water. The ester (E1) (545 g) and toluene (121 g) was charged into reaction vessel and heated to 92 degrees C and benzoyl peroxide (0.9 g) was added. The temperature of reaction was maintained at 95 (maximum) for 3 hours to form reaction mass. Further, benzoyl peroxide (0.6 g) was added to the reaction mass and temperature of 95 degrees C was maintained for 2 hours. A third and final lot of benzoyl peroxide (0.1 g) was added to the reaction mass and the reaction was continued for 1 hour at 95 degrees C. Finally, the temperature of the reaction mass was increased to 100 degrees C and was maintained for 30 minutes. The polymerized product (IP) (665 g) was obtained. The Brookfield viscosity of the product was measured to be 175 cPs at 30 degrees C in Toluene at 40% concentration. The polymer (IP) thus obtained was taken in reaction vessel provided with distillation assembly. Initially toluene was distilled at atmospheric pressure at 140 degrees C followed by vacuum distillation. Toluene (330 g) was distilled off. Coco methyl ester (294 g) was added to the reactor for dilution. The mixture was stirred and cooled. The polymer (IP) (590 g) was obtained as yellow to brown colored transparent viscous liquid. This polymer (1 wt.%) was added to high speed diesel and pour point was determined according to ASTM D97. The initial (before addition)/final pour point was 3/-12 degrees C respectively.