“…Our investigation shows that 95% of the studies conducted till date in PQ classification are not benchmarked. Few to name are study of Monedero et al [10], Dastfan and Zadeh [11], Mishra et al [12], Manjula and Sarma [14], Lin et al [21], Kocaman et al [22], Milchevski et al [23], Naderian and Salemnia [25], Suja and Jerome [27], Nath and Mishra [30], Nayak and Dash [33], Biswal et al [34] etc.…”