These mock tests are set up usually a level higher than the actual exam as these tests are taken to check the preparation of the students. It has been seen that students are able to answer more questions in the actual exam than Abhyas test series. Now 180 is a good score. But still you have time to boost your preparation. Give more mock tests and try to score 200+ marks if you wish to join top notch NITs. Only a month is left for Jee Main. Some important chapters you must focus on- For Physics, Rotational Motion, Thermodynamics, SHM, Electrostatics, Magnetism, Optics, Modern Physics. In Mathematics, Complex Number, Conic Section, Circle, Calculus, Vector & 3 D, Probability, Trigonometric Equation, Properties of Triangles, Quadratic Equation, Sequence and Series, Permutations and combination. In Chemistry, you can more focus on these chapters for last month preparation- Chemical bonding, Electrochemistry, Coordination compound, Salt analysis, Ionic equilibrium, Thermodynamics & thermochemistry, Aldehydes and ketones, Aromatic hydrocarbons, GOC isomerism, Liquid solutions, Alkyl halides and aryl halides. Beside this, give mock tests regularly.