The seizure was made from the Lad Smit area and follows the seizure of Rs 12 lakh in Ri-Bhoi district yesterday.
The static surveillance team has seized Rs 38.67 lakh from one person under Madanrting police station limits today, chief electoral officer F R Kharkongor told PTI.
The seizure was made from a coal trader and a resident of West Jaintia Hills district who was travelling on a brand new SUV.
The cash was handed over to concerned authorities and investigation is on to find out the source and destination, an election official who was involved in monitoring movements, said.