"The company has been declared the successful bidder in respect of the bid invited by National Highways Authority of India (NHAI)," the Ahmedabad-based firm said in a BSE filing.
The scope of the work, it said, includes two-laning with paved shoulder of Karaikudi-Ramanathapuram section NH-210. It would be executed as DBFOT (Annuity) basis.
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"The estimated total cost for the development of the said project stands at Rs 382 crore. The concession period of the project is 15 years, including construction period of two years from the appointed date," Sadbhav said.
"There are 26 numbers of semi annuity. The amount quoted for each semi annuity is Rs 39.06 crore," it added.
Annuity charge is the periodic payment government makes to the concessionaire for financing, construction, operation and maintenance of a PPP project.