Economy Fear, doubts mount over fate of Namrup fertiliser plant Updated : January 28, 2020 04:09 PM IST The Namrup II unit has completed 44 years of production, while Namrup III 33 years — it is the only operational unit now. The lifespan of such factories is reportedly not more than 15 years. 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.