New Delhi: launching a fresh round of attack against yoga guru Baba Ramdev, Congress General Secretary Dignvijay Singh today said that Baba Ramdev’s background needed to be probed.

He also condemned the comparison of Ramlila crackdown to Jallianwali Baug. He said that Ramdev and Mayawati were two faces of the same coin.

The Congress party will not form an alliance with the BSP or SP in Uttar Pradesh, he said.