Bengaluru receives rain between mid-June and September. This video was taken a few days ago.
This is a part of the South-West Monsoon which sets in over Kerala (usually) on June 1. That's also the day when the new academic year begins in that State and one of the most abiding images is that of children in their new set of school uniform holding umbrellas and walking in puddles of water.
The atmospheric system moves north and during this June-September period the entire west coast, as well as some parts of the interior landmass too, get rain. Today, for example, Mumbai experienced heavy downpour leading to the suspension of public transport as well as shutting of offices.