To my wife, Swapna, daughter, Gouri, and PhD advisor, Prof. C. Siva Ram Murthy
— B. S. Manoj
To my beloved parents, Sima Chakraborty and the late Bikash Chakraborty
— Abhishek Chakraborty
To my papa, Ram Singh Chandel, and maa, Kusum Singh, and to my teachers
— Rahul Singh
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