Shares of HCL Tech, Infosys, and Tech Mahindra contributed the most to the Nifty IT index as it hit its lifetime high of 43,079.70.Shares of HCL Tech, Infosys, and Tech Mahindra contributed the most to the Nifty IT index as it hit its lifetime high of 43,079.70.  Read MoreMarkets, Business, Notifications 

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