With reference to India Post Payments Bank (IPPB), which of the following statements are correct? 1. IPPB was set up in 2016. 2. IPPB was incorporated as a public limited company with 100 % GOI equity under the Department of Posts. 3. To leverage the vast postal network, IPPB is headquartered at New Delhi. 4. Services offered by IPPB include life and general insurance, digital life certificate and domestic money transfer.