Who to score 160 marks in Mains in 1 month? My first JEE Mains attempt score is 62 percentile.

First believe that it's doable. The first prerequisite is however that you at least have the basic knowledge of about 60% of the syllabus. Rest, one month can be devoted to rigorous revisions, solving previous year papers with a time constraint and attempting regular mock tests. Practice is the key.