A private limited company can technically extend an interest-free loan to another private limited company with common directors, provided it complies with Sections 185 and 186 of the Companies Act, 2013. While Section 185 permits such transactions under specific exemptions (e.g., both companies are private and no other body corporate holds shares), Section 186 mandates that inter-corporate loans should carry at least the prevailing government security interest rate. Hence, an interest-free loan may not align with Section 186 and could face compliance risks. Additionally, from a tax perspective, such transactions may be scrutinized for lack of commercial justification. As safer alternatives, companies may consider equity infusion, share application money, or low-interest inter-corporate deposits, which are more compliant and tax-efficient ways to deploy funds between group companies.