
The rescuers sent a high-powered camera inside the well early Saturday which failed to detect the boy.
Jihad, son of Nasir Uddin of the railway colony, suddenly slipped into the deep pipe around 4pm on Friday while playing near the abandoned pump house with other children.
After the incident, the rescuers applied various techniques to trace Jihad but they failed.
Some food, juice and mineral water were also dropped into the pipe. They were also constantly providing oxygen into the pipe to keep the boy alive.
The rescuers efforts to detect the position of Jihad with a sophisticated GoPro camera 11 hours after his slip also turned futile as the picture shown seemed to be of a sack or clothes. Efforts were on to send another camera into the pipe at about 2.30am today.
State Minister for Home Asaduzzaman Khan Kamal said to the reporters around 2:45am "We can say there is no one in the hole according to the footage".
The latest development gave rise to speculations whether the child fell at all into the hole at Shahjahanpur Railway Colony.
Fire Service sources said in a briefing "The pipe is 245-foot deep not 600-foot."
Earlier, the railway authorities suspended senior sub-assistant engineer Jahangir Alam for the negligence of his duty.
TF