New Delhi, Nov 19 (ANI): After the incident wherein a former BJP leader spilled ink on Arvind Kejriwal's face, AAP leader Yogendra Singh Yadav said that it is the sheer desperation of political parties against AAP and that is why the opposition is failing to understand what to do. Further, he said that Kejriwal is open to any investigation on the funds collected and used and has even said to opt out of election, if any evidence against him are found out. Talking about BJP leader Sushma Swaraj's remark, he felt amused and said that AAP is glad to be a rich party if rich implies to giving account of all your funds.