Can a pvt ltd company a shareholder in another pvt ltd company can they stand as guarantor?

Yes, a private limited company can act as a guarantor for another private limited company. This is typically done by providing a guarantee for loans or other financial obligations. However, the ability to do so may depend on the company's articles of association and any relevant legal provisions. It's advisable for the companies involved to seek legal and financial advice to ensure compliance with applicable regulations.