Kodnani has been in hospital since last few months. She was granted three months' bail in November on medical grounds.
The Gujarat High Court recently rejected her plea for a 180-day or six-month extension of bail, but the Supreme Court granted her interim relief by giving her a week's bail that ends on Monday next.
The former minister was once known to be close to Gujarat Chief Minister Narendra Modi, who is the BJP's prime ministerial candidate for the general elections, due by May.
A legislator when she was arrested, she is the highest ranking person convicted in the 2002 Gujarat riots.
