The molestation charge is quite serious and needs to be looked into by AAP but apart from that other cases aren't criminal charges and some of them can easily be framed because they are/were anti-establishment. And speaking of Ex-Officer Khyalia, this is what I found in your source:
"In Kot, the state government had initiated the consolidation process, which I stopped later," said Khyalia. "After an enquiry, I had echoed Khemka's decision."
He however was not aware about the Rozka Gujar case. "Such cases are routine in the consolidation department where the process is notified or de-notified because of prevailing circumstances," Khyalia added.
Khyalia had stood by Khemka's order on the Vadra-DLF land deal. He had told the Haryana government that the basis of Khemka's decision to cancel the mutation was correct.
Anyways AAP clearly state that it won't let people with criminal and corruption cases to fight against it and appealed to the public to tell us about corruption cases against their candidates