1. Department of Computer Engineering, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
2. Department of Computer Engineering, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India,
3. Opera Solutions, Sector 16 A, Noida 201301, Uttar Pradesh, India,
4. Department of Informatics, Technical University of Munich, Munich, Germany,