1. There are hundreds of errors picked up and shared. Follow @disembe if you want some samples
2. The law has no provision for "provisional results".
3. Most of the Forms are not properly completed - lacking signatures or IEBC stamp. That renders them invalid.
Simple; pick any polling station results from the portal, compare the results with form 34A still from the site or obtained independently.
Nobody so far has picked any discrepancy despite the fact that the portal bears provisional results which are prone to error