Hey @ayush488, the model and tokenizer arguments should point to the directory where you saved the model / tokenizer with the save_pretrained() method. In other words, do the following work?
from transformers import pipeline

# Note: the model and tokenizer directories are usually the same
ner_tagger = pipeline("ner", model="E:\model", tokenizer="E:\model")

text = """Hugging Face Inc. is a company based in New York City. Its headquarters are in DUMBO,
therefore very close to the Manhattan Bridge which is visible from the window."""

entities = ner_tagger(text)