[S2]

Jades accent was mocked in the sense of comparision. Shilpa was comparing how she and Jade say same words, but due to accent difference, it sounded different. Whereas the covens ridiculed Shilpas' accent. Shilpa even talked about this in the Diary Room and was upset about it, but as optimistic as she is, she said "Nevermind....". If they wanted to bitch about her, why not just do it in plain english???
When Shilpa couldn't take anymore of Jackiey and was complaining to Ian and Jermaine,she did it in her own natural voice/accent. It didn't sound demeaning so much, as when the girls put on the mumbai accent and were pulling her every word/action apart