Just looks like a routine overhaul of the signalling system. Nothing new.
This line will stay as is. It was supposed to be taken over by the Paper mills, as an industrial siding, but the agreement only stayed on paper and IR still looks after the line. UBL division wanted to shut down Ambewadi station, but the station has been retained on a plea from the Paper mills as they do not have sufficient sidings to hold freight rakes.