1. School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur-492010, Chhattisgarh, India
2. Department of Chemistry, Govt. Nagarjuna P. G. College of Science, Raipur-492010, Chhattisgarh, India
3. Department of Chemistry, Govt. Madhav Science P. G. College, Ujjain-456010, Madhya Pradesh, India