The CCTV footage of the area outside the elevator, in which the alleged sexual assault took place, corroborates the victim's narration, said an officer, who is part of the team investigating the footage, on the condition of anonymity.
The woman journalist had accused Tejpal of molesting her on November 7 and 8 during the ThinkFest event organised by the magazine.
The footage could add to the troubles of Tejpal who has been given 3 pm deadline by police to appear before them. The journalist registered her statement before a magistrate on Wednesday.
"It is clear in the CCTV footage, dated November 7, outside the lift in Block 7 of the hotel that something went wrong in the lift," the officer said.
"The footage initially shows Tejpal and the victim woman accompanying Hollywood actor Robert De Nero to the latter's room. This was around 9 pm when Tejpal is seen entering the lift with his hands on the shoulders of the young journalist," the officer said.
He further said, "One-and-half hours later, around 10:30 pm, Tejpal is seen near the same elevator on the ground floor pulling the woman inside".
The officer said the lift was seen opening on the second floor almost after two minutes.
"The woman is seen coming out of the elevator adjusting her clothes and running down the steps as Tejpal follows her," the officer added.
The journalist had last Monday complained about the incident in an email to Tehelka Managing Editor Shoma Chaudhary, who resigned from the magazine on Thursday.
Taking suo motu cognisance of the matter, the Goa Police had registered a case of rape and outraging modesty of woman against Tejpal, who has since stepped aside as Tehelka editor.
Though Tejpal initially apologised for the incident to the woman, he later said it was a "drunken banter" and "consensual act". The journalist has dismissed Tejpal's claims.
Tejpal has also accused BJP-led Goa government of political vendetta.
The Delhi high court had on Wednesday posted hearing on Tejpal's anticipatory bail petition for Friday.
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