Indore to Pune -- Is South Indian Food Available In NH52/60 ?

Travelling with a 6yo (with SPD) who ONLY eats Idly or Dosa. We're on our way to Pune staying in Indore one night. Any suggestions for good restaurants on the way to stock south indian food? Thanks in advance. EDIT: We're looking to have a place to stop by in the NH -- we will go thru Indore - Dhule - Malegaon - Chakan