Ms. Chandra Das, has completed her post-graduation in Organic Chemistry from the University Of Pune in the year 2010. She has successfully qualified for the UGC-NET JRF & Lectureship exam with AIR-270 in the year 2010 and thereafter, the CSIR-NET JRF & Lectureship exam with AIR-100 in the year 2011. She is very passionate about teaching and joined the Kendriya Vidyalaya Sangathan (KVS) as PGT (Chem) in the year 2012. While serving in KVS as PGT(Chem), she successfully cleared the 'Combined Geoscientist & Geologist Exam' conducted by the UPSC with AIR-10 in the year 2015. She joined the Geological Survey of India (GSI) as Chemist in the year 2016 and currently, she is working as Senior Chemist in GSI. She is very passionate about reading, writing, teaching and learning new skills. Through this book, she has tried to distil all her Knowledge and experiences so that one can take the right action towards their goal fulfilment without any further delay.