Appealing to the people to stay alert, Jharkhand minister Banna Gupta on Saturday said some "opportunist forces" conspired to disturb the peace and tranquility in state capital Ranchi in an "organised" fashion. The peace-loving people of the state will never allow them to succeed in their nefarious design, said the health minister in a statement issued by his officer here. The police are discharging their responsibilities to maintain peace, and no one will be allowed to take the law into their hands, he said.