I have deleted some more. Actually, I have deleted practically the whole of the article because it was written from an unabashedly Bangladeshi nationalistic POV by mis/using non-rs sources. I have explained the reasons in my edit summaries. If anyone wants more elaboration on any point, just ask. Do not reinsert improperly sourced, non-neutral content in violation of sitepolicies like WP:V, WP:NPOV. Thanks.