NIA sources also revealed that a new sketch appeared completely different from the earlier one, based on the account of eyewitness than the previous one that was issued by the Delhi Police, said a report in MiD DAY.
"His description gives us a completely different person who might have planted the bag that day. He has told us that there was a man in his mid-twenties who kept a briefcase just a few meters away from him. He then moved to the counter window but the witness intervened as he thought that the man was breaking the queue," said NIA sources.
Sources also claim that the bystander told the suspected man who was moving back and forth to take away his bag. The bomb went off after ten seconds.
According to eyewitnesses description, the man was clean shaven and wore a golden framed, oval shaped glasses.
"We are probing the case partly on the lines and descriptions given to us by this eyewitness and have prepared fresh sketches," said officials.
Reports also suggest that the eyewitness stays near South Campus area in Delhi. Police sources also reveal that many other eyewitness also remember the same description given by this eyewitness.
"We believe him since he told us that he can't forget the face of that man since he looked at him with a feeling of anger as the former thought that the man was trying to break the queue as he went up to the window despite many others standing behind him," said the source.
Meanwhile, with little success in hand, investigative agencies have now sought the help of foreign intelligence agencies in Southeast Asia if they picked any signal or communication related to the blast.
The Sept 7 Delhi High Court blast left 13 dead and a dozen others injured.