Delhi Chief Minister Arvind Kejriwal today escalated his confrontation with the Congress by asking Lt Governor Najeeb Jung not to protect the interest of Congress and the Home Ministry, which were keen on stalling his government's Jan Lokpal bill.

"Now it is for you to decide whether you will be able to stand up to the pressure or not. You are a genuine person. But I humbly want to suggest to you that you had taken an oath to protect the Constitution and not the interest of any party or the Home Ministry," he said in a strongly-worded letter to Jung.

The letter of Kejriwal, who shares a good equation with Jung, was sharp in tone and came a day after reports emanated that the Lt Governor had sought Solicitor General Mohan Parasaran's opinion on Delhi government's Jan Lokpal bill.

The law officer had conveyed to him that it will be illegal if prior consent was not taken from the Centre. It also came on a day when his party colleague Ashutosh called the Lt Governor a "Congress agent".

Kejriwal raised questions on how the Lt Governor had sought comments from Parasaran on the bill that was sent to him only last evening and shortly later news leaked out about the law officer objecting to it.

"I was surprised when I heard on television last night about SG's opinion. On which bill you had sought SG's opinion as we had sent the draft to you only in the evening and on which bill he had given you opinion," he said.