In its arguments on framing of charges before District Judge S K Sarvaria, the prosecution said suicide notes written by Geetika are the strongest piece of evidence against the accused.
Additional Public Prosecutor Rajiv Mohan also said the suicide notes written by Geetika's mother, who committed suicide on February 15, also point towards culpability of Kanda and Chaddha.
The court has fixed April 2 for hearing further arguments.
Both Kanda and Chaddha are accused of abetting Geetika's suicide. She was found dead at her Ashok Vihar residence in Delhi on August 5, last year.
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In her suicide note, Geetika had said that she was ending her life due to "harassment" by Kanda and Chaddha.
Geetika's mother Anuradha Sharma also committed suicide and had left behind two notes in which she blamed the duo for driving her daughter to take such an extreme step.
In its main and supplementary charge sheets, Delhi Police has said Kanda was obsessed with Geetika and wanted to bring her back in his company to sexually exploit her.
They have also been booked under Section 66 of the Information Technology Act which deals with computer hacking.