"15 votes were invalid. Of these 15, nine are ours and six are of non-UPA parties," he told reporters after meeting President-elect Pranab Mukherjee.
The Minister was asked how the party was hoping to better its performance in the forthcoming Vice Presidential poll.
He said the party would ensure in the elections that all MPs cast their votes properly so that the performance can be further improved.
Bansal said in the Presidential polls, Mukherjee secured 69.3 per cent of the total votes and defeated opposition candidate P A Sangma by a margin of over four lakh votes.