The administration has received 1,852 valid bids for the items, including Modi's monogrammed suit, which went under the hammer for Rs 4.31 crore, sources said.
"The approximate revenue generated from the auction of the gift items is Rs 8.33 crore. We will be able to give the final figure tomorrow since calculations are on," Surat District Collector Rajendra Kumar told reporters.
"During the three-day auction, we received 1,852 valid bids for all the items. Proceeds from the auction will go to the Clean Ganga Mission," he said.
Two other items which went for more than Rs 1 crore were a replica of the Pashupatinath Mandir, which was gifted to Modi during his visit to Nepal, and a replica of the Statue of Liberty, which is a gift he received during his visit to the USA, Kumar said. Both the items received bids of Rs 1.11 crore each, he said.
Surat-based diamond businessmen Lavji Badshah and his partner Jayanti Aklara made a joint bid of Rs 1,11,11,111 for the replica of the Statue of Liberty, he said.