An RTI activist was attacked with syringes allegedly containing poisonous substance by three unknown offenders near the court centre in Markapur town in Prakasam district on Sunday.

The activist N. Srinivasa Rao (40), who swooned after he was injected the substance, was first rushed to the Markapur area hospital and later shifted to the Rajiv Gandhi Institute of Medical Sciences (RIMS) here.

The incident came a day before resumption of hearing in a case in the Markapur court on Monday against him filed under the Scheduled Castes and Tribes (Prevention of Atrocities) Act.

Dr. Rajeswara Rao, attending on him at the RIMS here, said “vital parameters of the RTI activist including pulse rate and blood pressure are normal. He is drowsy. But he is responding to verbal stimulus”. Superintendent of Police K. Raghuram Reddy said that preliminary toxicological screening does not indicate use of any poisonous substance. “Blood samples are being sent to the Forensic Science Laboratory in Hyderabad for a detailed analysis,” Dr. Reddy added.

Srinivasa Rao has been invoking the provisions of the Right to Information Act against local revenue and police officials in Markapur and complaining threat to his life. He is into pawn broking in the town and gives loans taking insurance policies and bonds as security. He had been picked by the Budvel police in 2008 for allegedly taking stolen property as security and advancing loan, the Markapur police said.