The word "mali" apparently comes from the Sanskrit "mala" or garland via Hindi. Malis seem to be generally shown crouching on postcards.
[Verso, handwritten] "Upper Burma, May 8/18 My dear Annie, I am pleased to hear from Mother that you got some nice presents for your birthday and I hope you got scenic [postcards?] in due course. This is a Malee or Gardener. The Monsoon is coming and we are getting lots of rain. Best Love Daddy xx."