The woman made her threat as the minister ended answering questions on his recent visit to China along with senior officials of his ministry, ONGC and other agencies.
The woman, whose name is being withheld, had apparently met Deora seven times but she had not been allotted the petrol pump that was promised to her. She alleged that senior officials of the ministry are asking for Rs 25 lakh to allot her a petrol pump.
It is not yet known how she managed to smuggle in a bottle full of petrol into the well-guarded Shastri Bhavan and made it to the conference hall, which is accessible only to the media.