Based on a petition filed by the SUCI, OHRC chief Justice (Retd) B K Mishra issued the notice to the senior police officer.
A SUCI release today claimed that the GRP in-charge J R Samantray had illegally arrested its six activists on May 8 and forwarded them to court.
"While the party activists were engaged in public subscription collection in specified party boxes, the IIC booked them on charges of extortion," said Khageswar Sethy, a local office-bearer of SUCI.
Although the SUCI leaders had brought the IIC's action to the notice of the Railway SP and the director general of police no action was taken against him following which the party was left with no alternative but to approach the OHRC, the release said.