Mr Chatterjee was questioned for three hours last night and he was back today at the police station. Police sources say Mr Chatterjee has said he was not drunk or speeding, but tramlines on the road may have caused him to crash.
After partying in at least two nightclubs, Mr Chatterjee was dropping Ms Chauhan home in the early hours of April 29 when the car crashed. He rushed her to hospital but she died 40 minutes later.
Last Friday, the actor told a press meet he was not drunk when the crash took place. The claim cannot be corroborated without forensic tests on his blood. Police say his blood sample was taken on the day of the accident but forensic results are still not in.
The police have seized CCTV footage from the bars that Mr Chatterjee and Ms Chauhan visited that night.
The Kolkata police has been accused of going slow in the case under pressure from powerful members of the Trinamool Congress government.
Mr Chatterjee was also injured in the crash and still has a bandage round his head. On May 4, the day he was released from hospital, he was served notice to record his statement with the police.
The actor has already reported for work on the sets of a Bengali TV serial in which he plays the lead.
Five friends of Ms Chauhan, who were with her shortly before the accident, have also recorded their versions with the police.
Pictures that the model's friends shared on Snapchat have set off a storm. The footage shows Mr Chatterjee with a glass in his hand, but it is not clear whether it was alcohol or a soft drink.
Supporters of both have launched campaigns in Kolkata. A "Justice for Sonika" petition has been launched by activist Pranadhika Sinha and "Voice for Vikram" has been started by the actor's friends.
Rangoli Chandel Vs The World: Actor Vikram Chatterjee Gets Involved; 'She's Protecting Me,' Says Kangana Ranaut Court Clears Way For Actor Vikram Chatterjee Trial In Sonika Chauhan Case Actor Vikram Chatterjee To Be Tried In Sonika Chauhan Death Case: Court 2 French Rafale Jets Collide Mid-Air, Instructor, Pilot Missing Ayatollah Khamenei Warns Of "Divine Wrath" If Iran Backs Down Against Israel "Pivotal Moment": Key Doctor Body Resumes Strike 2 Days After Calling It Off Will Go To Gaza Even If It Would "Cost My Life", Says Palestine President Ajit Pawar Says Might Stay Out Of Assembly Polls, Son May Take Over "Pivotal Moment": Key Doctor Body Resumes Strike 2 Days After Calling It Off Track Latest News Live on NDTV.com and get news updates from India and around the world.