Quicker Maths Book was written by M. Tyra. He writes book notes on problem solving and quantitative aptitude, with a special focus on Vedic mathematics which is useful in your upcoming exams. Here you can download and read Quicker Maths pdf notes.
M. Tyra has co-authored the book, Practice Book On Quicker Maths, with K. Kundan. Quicker maths book can be used for practicing problem solving and strengthening one’s understanding of the concepts from Magical Book On Quicker Maths.