B2 Visa interview language selection

Hi - Need urgent help.

My MIL B2 VISA interview is in Chennai on 31st May. But it is set up in English language but she can talk only in Telugu.

Can someone suggest how to change language selection without canceling the appointment?

Thanks,

Nagendra

not easy correct way is to cancel thgisappointment and take fresh in telugu. but you will not get any date before june