Ganguly said there was no way for the lucrative tournament to resume before India play the final of the World Test Championship against New Zealand in England on June 18.
But VAR prompted referee Juan Martinez to check an Eder Militao handball a few seconds before, with a huge decision seeing Madrid's penalty cancelled and a spot-kick awarded to Sevilla instead.
Germany's Zverev, conqueror of claycourt specialists Rafa Nadal and Dominic Thiem en route to the final, dropped his first set of the tournament. However, he fought back under a closed roof at the Manolo Santana stadium to lift his first claycourt title since 2019.