Best Books and Online Resources to Learn Reading Electrical Diagrams for Beginners

Hello I am mechanical engineer .I want to learn how to read electrical diagram. Please suggest some links or books

A quick google search will turn up many sites with lists of the symbols used, like this one.  But for the  diagrams to make any sense to you you will need to know a bit of theory too.  You can also pick this up by googling, there are sites like this one.  Depends how deep you want to go, and exactly what you want to learn (electrical or electronics) but it may take you some time to gain the knowledge you want, and a course might get you there quicker, if you can afford the costs and the time.

I want to know control wiring diagram sir

Nitesh - I googled "electrical control circuits" and there is a lot of stuff there.Electrical controls are often done with Programmable Logic Controllers (PLCs) these days.  Consider going on a PLC course - I have been on one and it was fun and interesting.  But do get yourself a bit of theory first off the net.

Thanks a lot sir for your help.sir can you please tell as a electromechanical engineer what knowledge  should I be having??

Nitesh - electromechanical, though not my area, will involve three aspects:(1) Drive systems including motors but also actuators, levers, valves, solenoids etc that perform mechanical tasks(2) sensors that give information about the mechanical system, like switches, limit switches, temperature and pressure sensors, encoders to give information about position or rotation of components, eetc.(3) Control systems that get information  from the sensors and activate the drive systems of the machine to do a task or tasks (eg filling bottles, shaping sheet metal, placing parts, cutting, etc, etc).  You mechanical engineers know what you can do, the control systems engineer gets systems to drive the machines to do it.