Please kindly recommend a signal processing book that explains basic concepts of signal processing in simple words(easy manner) and with minimum mathematics?
My book "Understanding Digital Signal Processing" introduces the mathematics of DSP in a gentle and illuminating way. Each math equation is explained in understandable text. My book does not choke the reader to death with algebra. Steven Smith's terrific "The Scientist and Engineer's Guide to Digital Signal Processing" book is modest in its mathematical intensity. (See the above link posted by FourierFlux.) For a DSP book with the absolute minimum of mathematics, see "The Essential Guide to Digital Signal Processing" by Lyons and Fugal.
Some video lectures, books (Analyzing neural time series data) from Mike x Cohen are good resources to learn Signal Processing. He also gives and explains Matlab examples. You can check it out here: https://www.mikexcohen.com/
This is an introductory book. Do not expect to be an expert after reading this. On the other hand this book gives you a very very gentle introduction to DSP. Comes with a git repo with all examples too.