Programming Language-python

Your Engineering discipline is : Electronics & Communication. And in ECE it doesnot have much use of compared to C ... But yeah, No knowledge goes in trash ... it will be useful someday somewhere somehow.
Learning it will even enrich your resume.

Sairam_007Is Knowing Python a very necessary and important criteria for placements these days?
CEans help me out.!?

Nope. It might be required by a few companies that use Python in their projects but it's not a 'must' for sure. I'd recommend learning Python out of interest because it's quite powerful languages a computer science engineer can learn. For most of the campus placements, knowledge of C, C++, Java or .Net (any language) would be fine. The focus would always be more on knowing the basic concepts of programming.

If you're above average in C, C++; I'd strongly recommend learning Python in your spare time. Interviewers will definitely be impressed if you are skilled in Python.

Which is the best reference book for learning python.? Heard A Byte of the python is the best?

"Dive into Python" is good book to start with.