Shiv Sena workers today assaulted and blackened the face of a Right to Information activist at Latur in Maharashtra's Marathwada region, after he "exposed" an illegal construction case. The activist Mallikarjun Bhaikatti had, through an RTI query, revealed that around 14,000 square feet illegal construction was carried out in a four-storeyed building and boys hostel on the Latur-Nanded road.