Yo, the stretch from Bagnan to Andul is hella packed. And the bit from Dasnagar to Howrah is also pretty crowded. Bruh, the number of freight trains has gone up like a million times in the past 2 years. Like damn, almost 98% of the trains in SER in the KGP-HWH Section are late every single day. Like seriously, even if a train arrives in Kharagpur just 5 minutes late, it ends up being 1 hour late in Santragachi and 1 hour and 30 minutes late in Howrah.
So check it, the route from Howrah to Barddhaman is like lit with 7 lines (4 chord lines and the 4th line part is done, plus 3 main lines). But bro, the route from Howrah to Kharagpur is still stuck with only 3 lines and it's got mad freight traffic. They've been surveying for the Santragachi-Kharagpur 4th line for like 4 to 5 years now and they still haven't started the project. The Railway Board is straight up sleeping on SER, not giving them no attention.
And yo, the KGP-SRC section needs a 5th line because of the traffic, but the Railway Board couldn't care less. They've only got 3 lines till now, which is causing major delays for all the passenger trains. They be prioritizing freight trains like they're VIPs or something.
SER gets no love in the passenger department, even though it's one of the cash cows of Indian Railways.