Dawn and dusk
Jackals are part of the recorded carnivore set. They often use forest edges and tracks at first light.
Jackals use forest edges, tracks and the hour around first light. They are part of the recorded carnivore set, easy to skip if you only scan for tiger.
A pair trotting the road is a good Mukundra morning. Do not throw food. They already know the gypsy schedule better than most visitors.