Rajya Sabha MP from Tamil Nadu Sasikala Pushpa, who was expelled from AIADMK in 2016, joined the Bhartiya Janta Party (BJP) here on Saturday.
The decision comes at a time when Sasikala's tenure in the Upper House of Parliament is about to end in a few months, besides, Tamil Nadu Assembly elections scheduled for next year.
Sasikala, late Tamil Nadu chief minister J Jayalalithaa's close aide, is also being probed in a disproportionate assets case by the Income Tax (IT) department.