The Centre has declared one-day state mourning today in view of the demise of Tamil Nadu Chief Minister J Jayalalithaa.

A Home Ministry spokesperson said the national flag on all government buildings across the country will be flown at half-mast throughout the day.

The Central Government will also accord state funeral to Jayalalithaa.

Jayalalithaa, a popular leader who showered the poor with populist programmes, had died last night at a private hospital in Chennai after battling for life for 75 days.

The 68-year-old leader had suffered a massive cardiac arrest on Sunday evening.