The Reserve Bank of India has been reportedly authorized to conduct field trials for printing plastic Rs 10 denomination notes which will have a longer lifespan on Friday. "Approval for procurement of plastic substrate and printing of notes of Rs. 10 denomination on plastic banknote substrates has been conveyed to the RBI", Minister of State for Finance Arjun Ram Meghwal told the Lok Sabha in a written reply. The government had decided to conduct field trials at five locations of the country with plastic banknotes.