Well, I don't know too much about Hindi or Urdu, but I don't think that there are lots of similarities between them and Arabic. But what I know is that there are some borrowed words in Hindi and Urdu from Arabic I usually hear it in their movies. Besides Arabic and Urdu have the same Alphabets scripts but no similarities with neither grammars nor words' meanings. I think Urdu and Farsi are quite closer to each other than to Arabic.

Simply , NOPE !

well, there are some words that are so close to arabic in hindi .. for ex. कानून (Kanun) in Hindi = law or rules .. is pronounced the same in arabic قانون (Qanon) .. having the same meaning.. so yes there is a slight closeness only in some pronounciations and meanings .. best of luck :)