Peoples Democratic Party (PDP) legislator Mohammad Khalil Bandh was injured after a crowd allegedly attacked his vehicle when he was on his way to Srinagar.
He was taken to the Army Base Hospital in the Badami Bagh cantonment.
Chief Minister Mehbooba Mufti rushed to the hospital to meet the injured MLA.
The attack comes at a time when the Valley is boiling over violent protests following the killing of Hizbul Mujahideen commander Burhan Muzaffar Wani earlier on July 8.
A civilian was killed yesterday when the army personnel fired at the protesters attacking its camp in Bandipora district of Jammu and Kashmir.
Earlier on Saturday, three militants were killed as the Army foiled an infiltration bid in Poonch.
This was the first infiltration attempt by militants from across the LoC in the state after the protests broke out in the Valley following Wani's killing.
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The incidents of violence continue to crop up despite the Centre and Chief Minister Mufti urging the people to maintain calm and cooperate with the state government to restore peace in the valley.
After Burhan's death, Kashmir is on boil and about 40 people have been killed and over 3000 including 1600 civilians injured in clashes between youth and security men during protests.
Curfew imposed in the valley in wake of the protest continued today for tenth consecutive day.
The life in the Valley remained paralysed after Burhan's killing, due to strike called by the separatists and curfew-like restrictions imposed by the authorities.