@01_01 brother unfortunately i am guessing your 80 and 443 shouldn't be blocked because 80 and 443 is well known for HTTP and HTTPS and if it is blocked then you couldn't open HTTP(80) and HTTPS (443), for me all the ports you mentioned are unblocked expect 445 (SMB), and i agree for bsnl all ports are unblocked even on 4g network and on bsnl FTTH.