Business NHAI looks at shorter lease period to make TOT model more investor-friendly Updated : September 13, 2019 03:41 PM IST The TOT model is for monetisation of those public-funded national highways which are operational and are generating toll revenues for at least two years after commercial operations. Around 75 operational national highway projects completed under public funding have been preliminarily identified for potential monetisation using the TOT model. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.