Ahead of the assembly elections, Uttarakhand Special Task Force (STF) conducted raids in Haridwar and detained half a dozen with the old currency worth over Rs 4,50,00,000.
"Three people caught with the currency are from Haridwar and the rest are from Uttar Pradesh. The inquiry is on," STF Senior Superintendent of Police (SSP) Ajay Singh told ANI.
Further investigation is underway.
Polls to elect the 70-member Uttarakhand legislative assembly are scheduled to be held on February 14. The counting will take place on March 10.