Chennai, Oct 11 (UNI) Prime Minister Narendra Modi on Sunday inaugurated and dedicated railway projects worth Rs.750 crores, which will give a significant boost to rail connectivity, passenger convenience and operational efficiency in Tamil Nadu. At a public event held at Kendriya Vidyalaya ground in IIT-Madras campus, the Prime Minister, in the presence of Chief Minister Vijay, who shared dais with him for the first time after becoming CM, inaugurated five railway stations -- Ambasamudram, Palani and Paramakudi in Madurai Division, Namakkal in Salem Division and Vellore Cantonment in Tiruchchirappalli Division -- redeveloped under the Amrit Bharat Station Scheme, with…