| Author Profile : |
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 | Author : | Dr. K. Murugan Chettiar and N.Vijaya Lekshmi
| | Current Position : | | Principal (Rtd) , Thiruvalluvar College, Papanasam (PO), Tirunelveli District, Tamilnadu, India. | | Education : | | - | | Short Profile : | | Dr. K. Murugan Chettiar is working as Principal (Rtd) in Thiruvalluvar College, Papanasam (PO), Tirunelveli District, Tamilnadu, India. |
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