It gives me immense pleasure to announce that I have successfully received a Ph.D. degree from Kyushu Institute of Technology (Japan). I would like to acknowledge everyone who has assisted me throughout my doctoral studies over the years. The list is too long to mention everyone. Therefore, I apologize beforehand.

Nevertheless, sincere thanks to my supervisor Prof Shibata, for his rigorous support and motivation. Besides my advisor, I would like to thank Prof. Saha (IIT Delhi), Assistant Prof. Arun Dayal Udai (IIT Dhanbad), Prof. V. K. Gupta (IIITDM Jabalpur), Associate Prof. Atul Gupta (IIITDM Jabalpur), Saket Sir (MathWorks India), and many seniors for their guidance and knowledge.

I am very fortunate to have worked with wonderful people in the Shibata laboratory. I thank my fellow laboratory members and lab secretary, who assisted me in big time. I also want to acknowledge my friends and family members for always being there to listen to me. I wouldn’t be where I am today without your precious support.

Last but not least, thanks to Prof Shibata and the Japanese government for providing complete financial support throughout this long journey. My gratitude to you is infinite and endless.