Nimai C. Chandra4*, Govind Singh1, Sh. Sankanagoudar2, Prem Nath Dogra3, Sandeep R. Mathur4,, 1Assistant professor, Department of Biochemistry, Government Medical College, Haldwani Distt- Nainital, Uttarakhand (India) 2Senior resident, Department of Biochemistry, All India Institute of Medical Sciences, Ansari Nagar, New Delhi - 110029, India. 3Professor and head, Department of Urology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi - 110029, India. 4Associate professor, Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi - 110029, India. 5Additional Professor, Department of Biochemistry, All India Institute of Medical Sciences, Patna (Bihar)., India