Today I noticed that many Indians here in Germany have turkish/Arab friends! Why? Are they Muslim Indians???
Are you certain they are Indian? They are more than likely Pakistani or Bangladeshi. Also yes India has the largest population of muslims on earth with perhaps the exception of Indonesia.
Muslamics from Papistan, India and Bangladesh have gradually tapering similarities in appearance and manners. Bangladeshi, muslamics may have little of brain and no brawn, Indian muslamics may have little of brain and little brawn, Papistani muslamics have no brain and little brawn.