Sure, here are 50 tips and hacks for travelers going to Sweden from India, with explanations and SEO keywords included:

1. Travel Documents: Ensure you have a valid passport and visa (if required for Indian citizens) to enter Sweden.
2. Flight Booking: Book your flights well in advance to get the best deals and avoid last-minute hassles.
3. Currency Exchange: Exchange Indian Rupees for Swedish Krona (SEK) before your trip or upon arrival at airports for convenience.
4. Travel Insurance: Purchase comprehensive travel insurance to cover medical emergencies, trip cancellations, and other unforeseen events.
5. Language: Learn basic Swedish phrases or carry a translation app for easier communication with locals.
6. Climate: Pack clothing suitable for Sweden's varying climate, including warm layers for winters and light clothing for summers.
7. Electrical Adapters: Carry a universal adapter to charge your electronic devices as Sweden uses Type C and F sockets.
8. Public Transport: Familiarize yourself with Sweden's efficient public transport system, including trains, buses, and trams, for easy navigation.
9. Accommodation: Book hotels or Airbnb accommodations in advance to secure the best rates and locations.
10. Local Cuisine: Try traditional Swedish dishes like meatballs (köttbullar), herring (sill), and cinnamon buns (kanelbullar) for a gastronomic experience.
11. Safety Tips: Stay alert in crowded tourist areas and keep valuables secure to avoid pickpocketing incidents.
12. Health Precautions: Pack necessary medications and follow health guidelines, especially during the COVID-19 pandemic.
13. Cultural Etiquette: Respect local customs, such as removing shoes indoors and greeting with a handshake.
14. Emergency Numbers: Save important numbers like embassy contacts, emergency services (112), and local police for quick assistance.
15. Local SIM Card: Purchase a Swedish SIM card for affordable data and calling services during your stay.
16. Cash vs. Cards: While cards are widely accepted, carry some cash for small purchases and emergencies.
17. Tourist Attractions: Research and prioritize visiting iconic landmarks like the Vasa Museum, Stockholm Palace, and Abisko National Park.
18. Shopping: Explore Swedish design stores for unique souvenirs like glassware, textiles, and handicrafts.
19. Public Toilets: Use public toilets available in malls, restaurants, and tourist spots, or carry a toilet locator app for convenience.
20. Transport Apps: Download local transport apps like SL (Stockholm Public Transport) for real-time schedules and ticket purchases.
21. Travel Apps: Install travel apps for currency conversion, language translation, and offline maps for smoother navigation.
22. Photography Permits: Check if photography permits are required for certain attractions or events to avoid any issues.
23. Driving Rules: If planning to drive, familiarize yourself with Sweden's traffic rules, including speed limits and parking regulations.
24. Water Safety: Drink tap water safely as Sweden maintains high-quality drinking water standards across the country.
25. Hotel Amenities: Utilize hotel amenities like free breakfast, Wi-Fi, and concierge services for a comfortable stay.
26. Time Zone: Sweden follows Central European Time (CET), so adjust your clocks accordingly upon arrival.
27. Local Events: Check local event calendars for festivals, concerts, and cultural events happening during your visit.
28. Museum Passes: Consider purchasing museum passes for discounted entry to multiple attractions.
29. Outdoor Adventures: Explore Sweden's natural beauty through hiking, skiing, and fishing activities based on the season.
30. Tipping Etiquette: Tipping is not mandatory but appreciated in Sweden, usually rounding up the bill in restaurants or taxis.
31. Alcohol Laws: Purchase alcohol from Systembolaget stores, as they are the only authorized retailers for strong spirits.
32. Postal Services: Use postal services for sending postcards or packages, with convenient locations across cities.
33. Local Events: Participate in traditional celebrations like Midsummer (Midsommar) or Lucia festivals for a cultural experience.
34. City Tours: Join guided city tours or hop-on-hop-off buses to explore major attractions efficiently.
35. Nature Reserves: Visit national parks and nature reserves like Sarek or Kosterhavet for wildlife and scenic beauty.
36. Internet Connectivity: Enjoy free Wi-Fi in many public areas like cafes, parks, and libraries for staying connected.
37. Healthcare Facilities: Locate nearby hospitals or clinics in case of medical emergencies, with quality healthcare services available.
38. Student Discounts: If eligible, avail student discounts on transport, attractions, and meals with valid student ID.
39. Pet-Friendly Places: If traveling with pets, find pet-friendly accommodations and parks for their comfort.
40. Cycling: Rent bicycles for eco-friendly city exploration, with bike lanes available in many urban areas.
41. Nightlife: Experience Sweden's vibrant nightlife in cities like Stockholm, Gothenburg, and Malmo with clubs and bars.
42. Camping: Plan camping trips in scenic locations like Lake Siljan or Gotland's coast for outdoor adventures.
43. Swedish Saunas: Try traditional Swedish saunas (bastu) for relaxation and wellness benefits.
44. Local Markets: Explore local markets like Östermalms Saluhall for fresh produce, delicacies, and cultural insights.
45. Art Galleries: Visit renowned art galleries such as Moderna Museet and Fotografiska for contemporary artworks.
46. Currency Tips: Withdraw cash in larger amounts to minimize ATM fees during your stay.
47. Public Holidays: Be aware of public holidays as some attractions and services may have altered schedules.
48. City Passes: Consider purchasing city passes for discounted transport and attraction entry in major cities.
49. Hotel Check-Out: Confirm check-out timings with your hotel and settle any outstanding bills before departure.
50. Feedback: Share feedback and reviews of your travel experiences to help fellow travelers and improve tourism services.

These tips cover a wide range of aspects for travelers heading to Sweden from India, from practical advice on documents and currency to cultural insights and exploration suggestions.