Police officials queue up inside a bank to exchange their OHD notes in Mirzapur in UP on Saturday. Pic/PTI

Kobe: Hinting at more action to unearth black money, PM Modi on Saturday said those holding unaccounted money will not be spared and there is no “guarantee” that no further steps would be taken after December 30, till when people can deposit the old high denomination (OHD) notes.