Board your reserved coach early; travel to Nainital is ~2–3 hours depending on traffic — great day to distribute itinerary packs and safety brief for 35 students.
Early start to reach Solang and Rohtang area; allow for permit checks for Rohtang Pass (seasonal; usually open May–Nov depending on weather & permits).
Attend the evening Beating Retreat ceremony (time varies with sunset — usually 4:30pm–6:30pm); plan to arrive early to get group seating; security checks strict.
If your group has academic interest, pre-arranged visits to IARI require prior permission; Akbar's Tomb in Agra region — if you meant 'Akbar's Tomb in Delhi region, clarify before visit.
Long travel by road is impractical in one day; charter/group flight from Jaipur to Varanasi or flight via Delhi recommended — pre-book to fit 35 students.
A highlight of Banaras — spectacular evening aarti (usually around sunset); secure seating early for the group and brief students on safety near the water.