1.there are lot of mosque in shanghai. i know one is in fu you lu.near yu yuan garden.
2.here bangladeshi community is not so large. some is student,some is working,some is doing small business and total about 30 to 50 people.(not exactly)
3.in shanghai we can watch bangladeshi chanel from internet but its slow.but anybody can fix antenna.its about 2 hundred us dollar per year.
4.i think there is  no bangladeshi restaurent or shop in shanghai but have a lot of indian shop and restaurents. and also have xinjiang muslim restaurent but taste is like chinese food.

                                                                                              thanks.