Didn't get your tag (glitch I think).
With Biman Babu, he is just a humourous guy that speaks his mind without actually addressing the meat of the debate/logic regarding some statement he made.
Babu: Dhaka is better than Colombo (no proof given)
Other guy: Can we have some proof of that?
Babu: Posts video of Mumbai (totally unrelated)
Other guy: Ummm that is not Colombo or Dhaka
Babu: I am right! Your capital is just like Islamabad! (implication being its fake and stupid etc)
Other guy: But thats just your opinion, can you post some evidence?
Babu: What?
Other guy:.......
Babu: Didn't you see alladin skyscraper project in Dhaka? Super planned stronk! Just like Dallas USA! *posts video of Dallas*....see?
Then Babu will go into repeat mode till he (or other guy) loses interest.
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It is very much like his earlier moments on all kind of subjects:
Some guy: blah blah blah Mongols blah blah blah
Babu: Hey, I'm a mongol descent did you know???
Some guy: Oh yeah? Whats the proof?
Babu: I'm confirmed 100% Genghis Khan descent!
Some guy: But you dont have proof....
Babu: I just told you I am! I am from the shonar horde!
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So I say just let him amuse you. He is a strange, amusing fellow. Living in BD must drive him nuts each day...so he need some escapism in this forum.