Exactly.
That's what i am also not getting.
1. Dev very well knows that his mom didn't accept Sona and treats her as an outsider(based on his FBs during fake pregnancy), then why he took such a big decision without his mom's knowledge?? Agree for each and every business investment he will not discuss with his mom, but since it is related to Sona and her family why he didn't include his mom??
2. Dev even knows that his mom didn't like something if he hides from her e.g. his love for Sona and he know how badly she is affected, then why to do the same mistake again?? Can't he discuss with his mom and invest, can't he convince his mom about his investment??
3. Same with Saurabh also, he know about Bijoy but he didn't dare to tell him. Plus can't he discussed it with Sona, who voluntarily came forward to help him with his dreams of doing business?? She was very supportive and understandable to him from the beginning right, can't he shared that to her?? I think, he just carried away by Dev's words not to reveal to anyone, but anyhow its not acceptable.
I am not able to remember any single incident which turned out to be good by Dev's lies... But still he never stops that and continues to lie and hide things(even that he can't do it properly lol).