Jagatpalsingh G. Chavan, Balwant P. Salunke*, Sudhir N. Umathe,, Department of Pharmaceutical Sciences, Rashtrasant Tukadoji Maharaj Nagpur University, Mahatma Jyotiba Fuley Shaikshanik Parisar, Amravati Road, Nagpur (MS), India-440 033, India