1. Department of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005, India
2. Department of Chemistry, Prof. Rajendra Singh (Rajju Bhaiya) Institute of Physical Sciences for Study & Research, V.B.S. Purvanchal University, Jaunpur-222003, U.P, India
3. Intellectual Property Office Mumbai, 400037, the government of India