Bangladesh had proper roadways and cars when your parents had to wait eight years for the choice of two cars in the 1980's and 1990's - Ambys (outdated Austin UK copy) and Premier Padmini (outdated Fiat copy), both of which were WWII era outdated cars.
Only in the last ten years are cars available in India somewhat similar to the outside world. Still the average size of Indian cars are micro mini Tata Nano size cars, which can't really be called proper vehicles.
My grandfather drove around in Toyota Corona in the late eighties (see picture below), oirokom gari tor bap dada chouddopurush oishomoi dekhe nai - chintao kortey partona. Fotor fotor bondho kor.
Shalar duidiner boiragi - bhaterey koi "onno". Bekoob.
Amra Bangladeshi shokoley jani India tey ki chhilo ar ekhon ki aasey. Chest beating korey luv nai. Toder entire tourism sector amader poishai choley gadha. Taka nibi ney - mukhta bondho rakh. Nailey oitao bondho korey dewa jabey.
Ja bhalo shomporko duidesher moddhey aasey - ta koikjon bhodro Indian der jonno aasey. Toder moto Bharotiyo bekoob der amra pusio na.
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In any case, your lame attempt to hijack the thread here (as well as daily in all other Bangladeshi threads) has been noted and reported. Keep doing this and you will have a ban in no time.
The length of the entire route is 9.39 kilometres (5.83 mi), with the tunnel making up 3.32 kilometres (2.06 mi) of the length.
I don't think you can compare drilling tunnels through mountains vis-à-vis drilling under riverbeds, circumstances and tactics are quite different. I'd say underwater tunnels are much tougher to build, with water leaks a huge factor.
By the way, the 6.15-km Padma bridge we built recently has the following toll. It is what it is.
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