India, May 7 -- At least three persons were detained for questioning in connection with the murder of Chandranath Rath, personal assistant of Bharatiya Janata Party (BJP) leader Suvendu Adhikari, a senior official said.

"Investigation is going on. Some persons were being questioned," said a senior police official.

Adhikari, a front runner for the chief minister's post in the BJP-government, defeated sitting chief minister Mamata Banerjee in her home turf Bhabanipur in South Kolkata.

Rath was Adhikari's PA for around five years and was his close aide who played a key role in managing Adhikari's election in both Nandigram and Bhabanipur. Adhikari won both the seats.

"Union home minister Amit Shah has been informed," said a BJP leader. ...