It’s getting scary down there. Despite deploying hundreds of cops into the subways, a spike in violence has seen straphangers across the Big Apple slashed, shoved and beaten in at least seven attacks over the past week.

The NYPD says transit crime is down 35%, but just in the last two days a young man was stabbed on one train and a woman was pushed into another.

A violent menace repeatedly slashed a 46-year-old straphanger in an unprovoked early-morning attack on a Manhattan subway train Tuesday, cops said. The victim was riding a southbound No. 2