In the song Dennana Dennana, the hero Nirup Bhandari has thick beard and towards the end of the song (when traveling in car) has thinner beard.
When Goutham takes Sandhya to Kamarottu home for the first time he say that his wife has been missing for three days. In the same conversation within a minute or two Sandhya says it as two days and Goutham also says two days.
The Audi car used is having registration number as KA01 MJ 4489. This car is registered in September 2012(RTO KARNATAKA website has the details of the registration number) where as the accident happens in 2007.
Someone has written this as goof "The village Kamarottu is told to be in the Dakshina Kannada (Mangalore) district of Karnataka. However the car that the lead pair take to reach Kamarottu bears the registration number of Kerala (this can be seen towards the end of the song "Dennana Dennana")." But in my opinion it is totally fine to drive Kerala registered vehicle in Karnataka. I have seen many Puducherry registered private vehicles in Dhawarad and Belagavi districts. Moreover Kerala is neighboring state of Dakshina Kannada. So it is not factual error.
The Audi A4 used in the movie is a 2014 model whereas the accident takes place in 2008.
The model of the car in which the protagonist meets with an accident is from 2013, while the accident in the movie is supposed to be occurring in/around 2007.
The Victrola tone arm lacks a sound box and stylus. Sound is impossible.
When Sandhya asks Pandu for information about the Suvarnas, he reveals that both Indu Suvarna, and her husband Gautham Suvarna, were confirmed to have died in the accident. He goes on to say that the woman who was traveling with the Suvarnas was Harini Ranganath. If Harini had been positively identified, as the records indicate, she could not have assumed the identity of Indu and claimed that Siddharth was her husband Gautham.
Harini could not have possibly known that the injured Siddharth had sustained memory loss, to simply accept that his name was Gautham, as stated by her. She could also not pass herself and Siddharth to be Indu and Gautham Suvarna, as their remains had already been found and they had been confirmed to have been killed in the accident.