What is the Delhi ‘water tanker scam’?

The Delhi water tanker scam has again come to the fore after Kapil Mishra was sacked as water minister and removed from the post of Delhi Jal Board chief. According to Mishra, he was sacked as he had asked Kejriwal to take action against those involved in the scam. Mishra also alleged that he was ‘probably’ sacked because of the AAP leaders’ names he had mentioned in his report on the water tanker scam. On Sunday, he met Lt Governor Anil Baijal and briefed him about the scam.