Response/refutation to the comments and concerns of Correspondence on published papers: Ceramics International 45, 822 (2019) and Ceramics International 47, 22147 (2021). Issue 6 (15th March 2022) - Kumar, Nitin; Shukla, Alok; Kumar, Nripesh; Agarwal, Ravi; Choudhary, R.N.P.