Locking horns with the Haryana government, senior IAS officer Ashok Khemka today said there was no need to set up a committee after he cancelled the sale of over three acres of land to realty major DLF following a deal with businessman Robert Vadra. Khemka, who kicked up a political storm three weeks ago alleging irregularities in Vadra-DLF land deals, also said there was no need of security that was provided to him and he wanted a fair and quick probe into threats received by him.