Europe to South Asia over land
- This article is an itinerary.
All require some caution. Roads are poor in many areas and some are impassable in winter or in monsoon season. Various mountain and desert areas can be quite dangerous if appropriate care is not taken. So can some of the inhabitants. Most are friendly, curious and helpful, but the traveler needs some understanding of local customs and must take some care not to give offense.
The Silk Road 
All of the Silk Road routes travel through areas in which the political (and consequently security) situation can change within the blink of an eye, and really, things were far from perfect to begin with. The border areas of Iran-Pakistan, Pakistan-India, and obviously any border with Afghanistan in particular are currently quite hazardous. Consulting your countries' travel advisories and staying in tune with world news for signs of problems is a smart idea.
- Istanbul to New Delhi over land: Turkey - Iran - (Afghanistan) - Pakistan - India
- Alternatively: Turkey - Georgia - Azerbaijan - Turkmenistan - Uzbekistan - Kyrgyzstan - China - Pakistan - India
- Alternatively: Turkey - Georgia - Armenia - Iran - (Afghanistan) - Pakistan - India
See also Silk Road
Through Russia 
Russia to Iran 
Russia to South Asia via China 
- From Russia to Central Asia, then into China in one of these ways:
- Northwest China, road or rail from Almaty, Kazakhstan to Urumqi. See Moscow to Urumqi for details.
- It may be possible to cross China's Western border further South, following the Silk Road toward Kashgar. This would involve some roads that have seen very few tourists.
- From the North, road or Trans-Siberian Railway to Ulan Ude, into Mongolia to Ulaanbaatar and on into China
- Trans-Siberian Railway all the way to Beijing
- From the Northeast (if you want to visit Eastern Russia), Southwest from Vladivostok to Harbin
- From China, there are several routes toward South Asia