K1 visa was approved on the spot. At the end of the visa interview, the visa officer said "Congratulations, Your visa is approved and you'll get your passport back in 2 weeks. "
It took 2 months and 4 calendar days to get the passport with the visa back. On checking the visa, there was an error on the visa. The nationality was printed wrong on the visa. It was sent back immediately for correction. It took another 25 days to get back the corrected visa.
The communication with the embassy is very non-informative. They do respond to your emails but do not give any worthwhile information as to when your job would be done.