New Delhi, Nov 27: Apprehending "large scale malpractices" by Congress, BJP today asked the Election Commission to take all necessary precautions in the four states of Rajasthan, Delhi, Madhya Pradesh and Chhattisgarh to ensure free and fair polls and see that there is no "misuse" of state machinery. A party delegation met Chief Election Commissioner J M Lyngdoh and gave a memorandum listing complaints against the Congress ruled governments. "We urge the commission to provide observers with audio visual recording equipment so that malpractices, if any, can be suitably recorded and documented," the memorandum said. The delegation members who included party vice president Bal Apte, General Secretary Mukhtar Abbas Naqvi, party's chief whip in Lok Sabha V K Malhotra and MP S S Ahluwalia said they apprehended that Chhattisgarh Chief Minister Ajit Jogi maybe seeking home guards from West Bengal for election duty so that "their services could be misused." Bureau Report