The CD containing the alleged inflammatory speeches by Bharatiya JanataParty (BJP) leader Varun Gandhi that was sent to the Central Forensic ScienceLaboratory (CFSL) here for tests was "not original" and had beenaltered, an official source said Sunday.

"The voice in the tape was that ofVarun Gandhi but we did not get the original tapes. They were the editedversion in which different clippings were clubbed together," a CFSLofficial told IANS on condition of anonymity.

Gandhi, grandson of former prime minister Indira Gandhi and now a BJP MP fromPhilibhit in Uttar Pradesh, was arrested in March for making communal speechesduring an election campaign. He was released on bail in April. The UttarPradesh government had filed a case against Gandhi under the stringent NationalSecurity Act.

"We got the voice samples in the form of a CD, a video cassette and amicrochip. Our duty was to just examine those tapes and we simply did that andsubmitted our report. However, we are afraid that somebody had interfered withthe original tapes," the official added.

The CD reportedly contained three speeches made on three separate days inMarch.

Meanwhile R.S. Verma, director of CFSL, said: "We got the tapes forscrutiny and after proper examination we compiled a detailed report. The reportwas sent to the UP (Uttar Pradesh) police Saturday."

"I cannot divulge the details of the report as police have to do furtherinvestigation," Verma told reporters here. Gandhi has maintained that theallegations against him are false and the voice in the CD is not his.