The arc of India-Israel relations reflects the evolution of Indian foreign policy, from a world view infused with idealism to one more driven by hard-nosed interests. India voted against the establishment of Israel in the United Nations in 1948, largely because it equated religion-based statehood with Pakistan’s creation. For half a century India avoided full diplomatic relations with Israel but for a different reason: its ties with the Arab world and opposition by its Muslim community. Given its economic and strategic isolationism, this was easy to maintain. There were a few attempts, notably in the 1950s, to engage with Israel but these failed to gain traction.
https://www.freiheit.org/south-asia/india-outs-its-israel-affair