Why are the middle ages refereed to the dark ages?

Because they were very "Dark" times.  There was the plage (Black Death)  and many others.  There were many wars faught in that time span.  It wasn't peacefull or safe unless you were a king or in royal family.  Thats why they were referred to as the Dark ages.

"the sepoy rebellion was the result of many, many influences and stressors on the cultures of india living under british rule. in britain, it's called the sepoy mutiny on the indian mutiny, but in india, it's called the first war of independence.

the main reason is concerned to the british paramountcy , the belief in british   dominance in india political, economic and cultural life had been introduced in india about 1820."

"they were forced to grow crops that benefited the colonizing nations instead of feeding their own people."