During the narco analysis, Poonawala told investigators that he also used a cleaver to cut Walkar's body into pieces and that he threw the saw somewhere in the bushes near his office in Gurgaon, the police sources said.
A car stopped the police van in the evening after overtaking it. A few people came out of the car and started attacking the van carrying Poonawala, said police.
Delhi Police seized five knives from Aaftab's flat. However, they are yet to recover the saw allegedly used by Poonawala to cut his live-in partner Shraddha Walkar into pieces.
However, the dentist, who did not wish to be named, said he wanted more information to arrive at a conclusion.
The Delhi Police had on Friday sent teams to Maharashtra, Haryana and Himachal Pradesh to hunt for evidence in the case.
The WhatsApp chats revealed a pattern of abuse when Walkar lived with Poonawala in their hometown Vasai near Mumbai.
The complainant, Adv G S Mani, had submitted to the court that there was no limit on registering more than one FIR in the same case.
Shadab Khan collided with Asif Ali to hand Bhanuka Rajapaksa another reprieve in the penultimate over of the Lankan innings.
The Rouse Avenue District Court has scheduled a hearing of the case next Monday.
According to Additional Commissioner of Police (Eastern Range) Vikramjit Singh, prima facie, the accused appear to be part of a criminal network.