Why is lazy indexing Mode deleting my data in cosmos even if Time to Live(Ttl) is off?

Question

I used Lazy indexing mode to process for a smaller file, it worked fine. The reason i opted for Lazy indexing mode instead of Consistent indexing mode was that it consumed fewer RU's. But if I am trying to process a bigger file(more MB) with more number of events/rows, once the data gets inserted completely, then it starts deleting the inserted data. The only change i made to the default indexing policy in DB is changing the Indexing Mode from 'consistent' to 'Lazy' (TTL is still off).

why is the data getting deleted through Lazy Indexing in cosmosdb-gremlin API?

{
    "indexingMode": "lazy",
    "automatic": true,
    "includedPaths": [
        {
            "path": "/*",
            "indexes": []
        }
    ],
    "excludedPaths": [
        {
            "path": "/\"_etag\"/?"
        }
    ],
    "spatialIndexes": [
        {
            "path": "/*",
            "types": ["Point"]
        }
    ]
}