New Delhi, Dec 19 (IANS): The DRDO scientist, who was arrested by the Delhi Police's Special Cell in connection with the December 9 Rohini Court blast, on Sunday tried to commit suicide, sources said.

According to the sources, arrested scientist, Bharat Bhushan Kataria, tried to consume some poisonous substance while he was in police custody, and has been admitted to the All India Institute of Medical Sciences. "His condition is said to be stable," sources said.

On December 9, a low-intensity blast ripped off inside courtroom number 102 of Rohini court complex at around 10.30 a.m. injuring one person present within the blast radius.

The police on Saturday said that Kataria, 47, planted the IED at a place where a lawyer was likely to sit inside the courtroom, as he was "highly frustrated due to the protracted legal battles which were causing problems in his career as well as prolonged mental harassment and monetary loss to him and his family".

The probe revealed that Kataria and Advocate Vashistha were living in the same building till about 3 years ago. They were having a long-standing dispute of over 10 years and had filed over a dozen civil and criminal cases against each other.

The Rohini Court has been in limelight for the past two months after two back-to-back attacks that have raised several questions on the security arrangements at the court premises.

Even local courts have several times come down heavily on the security scenario at the Court.

Earlier on September 24, in an incident that seemed ripped from a Bollywood potboiler, top Delhi gangster Jitender Singh Mann, alias Gogi, was shot dead in Rohini Court by two assailants dressed in lawyers' garb. In the retaliatory fire, the assailants were also shot dead.