NEW DELHI: The Supreme Court today dubbed as a "serious issue" the long queues outside banks and post offices and expressed its reservation on the Centre's plea seeking a direction that no other court in the country should entertain petitions challenging the November 8 notification demonetising Rs 1,000 and Rs 500 currency notes.

"It is a serious issue which requires consideration," a bench comprising Chief Justice T S Thakur and Justice A R Dave said, while asking the parties to be ready with data and other issues in writing.

"Some measures are required. See the kind of problems people are facing. People have to go to the high court. If we shut them from going to the high court, how can we know the magnitude of the problem. People going to different courts indicates the magnitude of the problem," the bench said.

It made the remarks as Attorney General (AG) Mukul Rohatgi submitted that any matter relating to challenge to the demonetisation issue be heard by the apex court only.

However, the bench said, "People are affected. People are frantic. People have the right to approach the courts," noting that there are difficulties and "can you (the Centre) dispute".

The AG said there is no dispute, but the queues are getting shorter and even suggested that the CJI can go out during lunch and himself look at the queue.

"Kindly go in the lunch time," the AG told the bench and took objection to senior advocate Kapil Sibal, appearing for a private party, for allegedly exaggerating the situation.

"It's a political attempt in the court. I have seen your (Sibal's) press conference also. You are not appearing for a political party, but for an advocate. You are turning the apex court into a political platform," Rohatgi said.

At the outset, the bench questioned the relief measures undertaken by the Centre by saying, "Last time you said there will be relief for people in the coming days but you have squeezed the exchange limit to Rs 2,000 only."

"What is the difficulty? " the bench asked Rohatgi.

The AG explained the situation by stating that after printing, the currency has to be moved to thousands of centres across the country and ATMs have to be re-calibrated.

"There is no shortage of funds," he said.