Opposition MPs protested outside Parliament by forming a human chain and demanded a Joint Parliamentary Committee probe into the Adani issue on Thursday. Meanwhile, Congress workers also held a protest in the national capital over the Adani row and demand Joint Parliamentary Committee probe into it.Opposition MPs have been protesting against the Government, demanding a JPC probe into the allegations against the Adani Group. The party's MPs in both Houses wore black cloth around their faces and entered the Well even before the Presiding officers arrived.