No, CIC is not concerned with car loan or home loan. They are more concerned with the applicant having availed a loan to meet POF requirements. CIC wants to know that the POF that you are declaring originated from legitimate source - salary, savings, investments etc.
In case of home loan or car loan, these are secured loan, in the event of a default the lender has a charge on your assets (mortgage, hypothecation etc). So you need not be worried about your loans impacting your application negatively.
Yes, you can liquidate your investments in stocks and mutual funds and get the proceeds transferred to your bank account. To prove that the funds originated from your own investments, show mutual fund statement and stock holding proofs before liquidating the same along with proof of redemption. You. An submit these with a Letter of Explanation.
Thanks Stanlee