KOCHI: A Twenty20 activist who sustained injuries after beaten by CPM activists, succumbed to it today. He has been identified as C K Deepu (38) of Kavungparambu Parappuram Colony.

The CPM activists thrashed him during a protest of lights-off held on Saturday. Four were arrested in connection with the incident. Zainuddin Salam, Abdul Rahman, Basheer and Abdul Aziz are those arrested.

Deepu was Kizhakkambalam fifth ward secretary. He died of cerebral haemorrhage at noon.

Deepu sustained deep injuries in a protest staged by Twenty20. The protest was staged against Kunnathunadu MLA Sreenijan. Deepu, who was critically injured in the attack, was rushed to a hospital where doctors found internal bleeding. Deepu was on a ventilator at Kochi Rajagiri Hospital.