Chandigarh was built as a planned city. So why does it keep sinking in the rain?

Chandigarh's planned infrastructure faces recurring monsoon flooding issues. Intense rainfall exposed vulnerabilities in various city sectors and major roads. Vehicles were stranded and markets submerged after a short, heavy downpour. The city's drainage system appears inadequate for current rainfall intensity and urbanization. This recurring problem highlights the need for infrastructure upgrades beyond emergency responses.