Answer : 3. "SEBI"
Explanation :

The Securities and Exchange Board of India (SEBI) has launched a mobile app 'Saarathi 2.0' focused on personal finance for investors with the aim of simplifying complex financial tasks. This app is available on Google Play Store iOS App Store. The first version of the Sarathi app was launched in January 2022. SEBI is the regulatory body for securities and commodity markets in India.