1. Computer Science and Engineering Department, Thapar Institute of Engineering & Technology, Patiala 147004, Punjab, India
2. Smt. Chandaben Mohanbhai Patel Institute of Computer Applications, CHARUSAT Campus, Changa, Anand 388421, Gujarat, India
3. Department of Computer Science, Govt. Bikram College of Commerce, Patiala 147004, Punjab, India