A good movie or novel is all about the 'not said explicitly' than what said. It allows different interpretation for different people depending on how they see the movie. We usally make decision on others behaviour quickly based on some simple 'right/wrong' and in case if it has direct impact to our lives or our beloved ones there is no chance of empathy in this case.
In this movie, Papa(Suraj) keep seeing again and again with only one perspective to confirm the guilt of other which finally leading him to action of revenge. But at the height of the hatred he is able to return and the perspective of life and people changes completely.
For Papa(Suraj), the perspective on others (Allen and Sneha) changes completely when he was in similar situation in the climax and almost did similar for short while, but luckily he has chance to realise and recetify his error. After realising the impact of his 'narrowly corrected' behaviour he is elevated to highest position when he can see people and behavior in new perspective including retrospection of his own.
Earlier in the movie there was scene where sneha said indirectly ask him to consider her in his daughter position while explaining her situation about the marriage. In the last scene we see him accepting her as his daughter as his perspective of others has changed completely now.
After all this makes me realise the famous lines of kannadasan
"Manithanamma Mayankugiran.. Thavarukku thunindha manidhan azhuvadillaye". ( In English : As I am human ..always confuses.. People who dare to make mistake dont cry).
And the way movie portrey the change of protogonist (suraj) view/perception of others and his final transformation is shown brilliantly and convincingly.
Strongly supported by the terrfic performance of lead actors the story gets into one deeply even after you switch-off the TV and will lead to 'internal discussion' within . This review is outcome of such 'internal discussion'.