Kottayam (Kerala) - An audio clipping of the talk between the ASI and Shanu Chacko is now being aired by the TV channels.
Inspector General of Police Vijay Sakre, who is heading the probe, told the media that Assistant Sub-Inspector (ASI) Biju and a police driver were being interrogated.
On May 24, Joseph, who had converted to Christianity, married 20-year-old Neenu Chacko, whose father is a Christian and mother a Muslim. Chacko's family was strongly opposed to the marriage.
Following a backlash from the bride's relatives, Joseph put her in a women's hostel in Kottayam and went to his relative's home.
When Chacko failed to get through to her husband despite repeated calls on his cell phone, she approached police in Kottayam.
However, the police shooed her away on the pretext that they were busy with Chief Minister Pinarayi Vijayan's visit that was to continue till late Sunday.
Police arrested the woman's father Chacko John and her brother Shanu Chacko -- the alleged masterminds of the crime -- on Tuesday. Three others, who are now in judicial custody, were held on Monday.
The father-brother were being interrogated and would be presented in a court later on Wednesday.
An audio clipping of the talk between the ASI and Shanu Chacko now being aired by the TV channels -- Sakre confirmed that the voice is of the said ASI.
State Congress President M.M. Hassan visited Joseph's kin on Wednesday. He told the media that at the moment they would prefer a probe monitored by the court.