Union Home Minister Amit Shah on Sunday said only the BJP-led alliance can secure Punjab, uproot drug menace from the state and stop illegal religious conversions, even as he made a sharp attack against Chief Minister Charanjit Singh Channi and AAP leader Arvind Kejriwal. Shah, in his first public rally for the February 20 state assembly polls, hit out at the Congress over the 1984 anti-Sikh riots and accused Congress leaders of being involved in killing of Sikhs in Delhi. He also raised the issue of religious conversion of Sikhs and Hindus in the state and lambasted the Channi-led government for 'failing' to check this practice. Shah claimed that religious conversions were a big problem in Punjab. "These religious conversions cannot be stopped by Channi sahib," he said, adding that the AAP couldn't stop them either. He asserted that only the BJP could stop the conversions. At another rally at Patiala, the Union minister praised former chief minister Amarinder Singh, saying he always rose above partisan considerations when it came to issues concerning national security.