correct. I too noticing since 1 week between jharsuguda and Raigarh trains are getting delayed.

I am sharing my sunday trip senerio what happened with me:-
I was onboard in Itwari - BSP intercity on Sunday from Rajnandgaon to Durg 10:25 am. Mostly train tooks 20-25 min from Rajnandgaon to Durg but mine train took 1 hrs 30 min and arrived durg...
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junction at 11:55 pm.

The delay was due to poor traffic management. Departed from Rajnandgaon se Durg ke bich Parmalkasa, Murhipar and Rasmara station hai uske bad sidha durg.
Parmalkasa ke outer me rok diya for 5 min fir dhire dhire aage leja ke pf me khada kar diya. After that murhipar ke outer me 10 min roka and mine train was overtaken by 2 freights. After that stopped in Rasmara outer for 30 min after then given the clearance.
Donot know which type of controlling they are doing.

Meanwhile i was same tracking SRC - Pune Humsafar for the capture but i was noticing on Sunday the train arrived durg at 12:10 pm instead of 7:30 am morning.

I too was noticing Samarsata express as mine fellow bankura RF was onboard in that train. was also delayed vo to bsp nhi aaya tha 11:20 ho gaya tha par abhi tak bsp nhi pahucha tha. hee was saying itna crawl karvaya hai secr trains ko.

From Jharsuguda the train was delayed and was already overtaken by 3-4 freight overtakes ho gaya hai according to a bankura rf.
Samarsata took almost 3 hours between jharsuguda to Raigarh instead of taking 1 hour.