With the Army chief's allegation of bribe offer kicking up a storm, Defence Minister A K Antony on Tuesday said he had asked General V K Singh to take action but he did not want to pursue the matter for unknown reasons.

Making a suo motu statement in the Rajya Sabha, Antony responded to questions as to why he did not act on the allegation by saying that he had not received any complaint from the army chief in writing.

He told the House that after Gen Singh's allegation appeared in the media, he had ordered a CBI inquiry based on newspaper reports.

"This happened more than one year ago. That is my memory.

Exact date they (army officials) know because no one can meet the Army chief without any appointment," Antony said.

Recalling the incident, the minister said the Army chief had told him that one retired General Tejender Singh met him and offered Rs 14 crore bribe.

"I was shocked... It took me one to two minutes to regain my composure. Then I told him to take action but he told me I do not want to pursue it. I don't know why he did not want to pursue it at that time," Antony said.

He assured the House that action will be taken against the guilty, however powerful they may be.

"I will take action, nobody will be spared. If anybody is found guilty, whoever he is, however powerful he may be, I will take action," Antony said.

"I acted on my judgement. If I am wrong, you may punish me. I think I have done my best," he said.

The minister said in the past he has taken action even on anonymous complaints from any quarters.