Please confirm whether you want to begin on 2025-12-01 and your preferred start city (Guwahati is recommended for Kamakhya first). This sets train booking windows and sleeper availability.
You requested sleeper trains and budget hotels — confirm preferred sleeper class (Sleeper Class SL is default) and a nightly budget range (e.g., INR 800–1500) so I can plan realistic hotel options.
You asked to include outside-India Shaktipeeths (Hinglaj in Pakistan, Nainativu in Sri Lanka, and potentially Bangladesh sites). Confirm which foreign sites you want included and whether you have passport/visas or want me to plan visa steps and recommended transit flights.
After you confirm the three points above I'll produce a day-by-day 40-day itinerary (each day: temple(s) with typical opening hours, train overnight legs (SL) with approximate departure/arrival windows, and budget hotel and meal recommendations). I will also add notes for visa/flight legs for Hinglaj/Nainativu and border requirements.