Q. ______, Associate Director, Space Applications Centre (SAC), Ahmedabad, took over as its Director. He succeeds R.R. Navalgund. The SAC is an important facility under the Indian Space Research Organisation (ISRO). It specialises in designing and developing payloads for various Indian satellites, including the Chandrayaan missions--

1. A.S. Kiran Kumar
2. A.K Saraswat
3. Dr. Pullela
4. S. K Manav