Artworks belonging to fugitive diamantaire Nirav Modi, who fled the country after duping state-run lender PNB of a whopping Rs 14,000 crore, for Rs 59.37 crore, were auctioned by the Income Tax Department on Tuesday and the department will get a net of Rs 54.84 crore of the gross proceeds, with the rest being the commission to the auction house Saffronart and the buyers' premium.