Some of the comments below make me sound more negative than I
really am about this episode.  In general, I applaud efforts
to get geography and politics correct.  However, my impression
is that you didn't really try very hard.  If you're not
willing to put the work in to get the details right, you
probably should just skip these parts altogether.

Genma, Nodoka and the baby Ranma wandered the back roads of 
China for a time,

Circa 1980 then?

learning trade secrets from the Chinese martial arts masters 
when they could.
Genma supported his family by odd jobs and the charity of the 
schools they
visited. The family did not stay in China for very long, 
however. Avoiding the
attention of the Communist authorities was never easy, and 
wanderers were
always suspect. That they had no permits meant always living 

Individual travelers from the 1980s who've written about their
experiences traipsing around China (Vikram Seth, Nick Danziger)
don't seem to have experienced this level of trouble.

in fear of
discovery. Genma steered their steps towards Tibet as the 
eventual goal of the
Chinese journey. When finally they reached that sad country, 
it was to find
that the Chinese occupation had impoverished the Tibetan 
religious heritage.

I'm not sure that I think of "impoverished" as the right word.
"Raped", perhaps, or "devastated"; but I think of the response
by the Tibetans to their cultural oppression to be one of the
most inspiring experiences I've ever had.

Genma had hoped to learn spiritual balance there to offset 
the warrior skills
he had learned from the Amazons, but the monasteries Tibet 
was so famed for
were, for the most part, gone.

Sera and Drepung were mostly just depopulated, not destroyed
like Ganden.  Tashi-Lhumpo was turned into a museum/amusement
park.  My understanding, however, is that, from any point
after the Cultural Revolution, one would have always been able
to find a few dozen monks at Sera or Drepung.

Disappointed, Genma and Nodoka decided to cross into India 
and seek the wisdom
of the Dalai Lama, who lived in that country in exile. The 
trail was a long one
through the stark beauty of the Himalayan mountains, and many 

I'm curious about their route.  Did they go through Nepal, or
around to the west?  The latter route would give a high
probability of starvation unless they were adequately prepared.

times they were
forced to sleep hungry, but all roads one day reach their 
destination. When
they reached the border of India and crept past the guards, 

Guards?  _AT_ the border?  So the family is not deviating from
the main roads/passes through the Himalayas?

it was as if they
had entered a new world. Genma was able to seek work openly, 

How did he get a work permit for India?  They're not, as far
as I know, handed out to just anyone, and the Saotomes are
conspicuous on sight in India in a way they are not in most
of China.

and they could
walk the roads without hiding every time another traveler 
appeared. In China,
they had always had to be careful of roving patrols of police 
or soldiers
catching them and finding out that they had no permission to 
be in the country.

The question that occurs to me here, or course, is why "patrols
of police" were stopping them at all.  Do they not have the
intelligence to dress in a local fashion?  Can they not learn
to grunt a few words of Mandarin, and change their body language?

When they reached the city in which the Tibetan government in 
exile lived, they

It's called Dharamsala, as five seconds with a web browser would
have informed you.

found the monks whom they had thought to find in Tibet. 

They were looking for specific individuals?

Arrangements were made
to allow them an extended stay as guests of the Tibetan 
people, and Genma spent
many happy years as a Buddhist monk, balancing his growth as 
a person with his
growth in the martial arts. Nodoka found instructors in the 
sword, and was able

Tibetan sword instructors?  Whose art is sufficiently similar
to the Japanese to be of use to Nodoka?

to continue her learning in her own art as well. Both of them 
doted on their
son, who grew like the proverbial weed.

When Ranma celebrated his sixth birthday, it was decided that 
the time had come
to return to Japan. The boy had grown up in foreign lands all 
his young life,
and needed to learn of his own people. The offices of the 

Nodoka would, of course, be worried about Ranma's ability to
fit in; back then, "returnee" children were often ostracized.

Dalai Lama were able
to obtain travel permits for China, so they were able to 

You know, the offices of the Dalai Lama are about the _last_
place I would try to get travel permits for China...

"Nihao! Shampoo is name! You Ranma, is right? Great-grandma 
make your mama part
of family, so we cousins now, yes? You want to play? Shampoo like to
practice-fight, weapons or no weapons okay. I kick your butt!"

This is supposed to be six-year-old Mandarin, right?  (If Shampoo
is addressing Ranma in Japanese, this is more than she knows at
her first appearence in the manga.  How did she learn it?)

written of their imminent return to Japan, her mother had 
called long distance
to the Amazon village with dire threats of dismemberment if 

This is about 1986, or as late as 1988?  And the Joketsuzoku
village is wired for telephone?  Just checking...

To Ranma, Japan was an eye-opening experience. He had never 
seen so much
electrically operated equipment in his life as could be found in his
grandmother's kitchen, and negotiating traffic was a new and 
unsettling hazard.

Traffic in Kyoto is worse than Dharamsala?  Somehow I have
trouble with this.  It's quite modest in Kyoto; the streets
are too narrow for high speeds.  Cars were scarcely that
rare in India in the mid-eighties.  (I have not been to
Dharamsala, but I doubt it's _that_ different from Delhi.)


Overall comments:  As you've heard on chapter 1, there isn't
much action or conflict in this story.  Your readers have
little reason to care about your characters, or about what
happens next.

The Tibet/China material suggests that you are either imposing
your own political views on the story, or you have taken a
fairly cursory exposure as sufficient material for story
background.  I would recommend that you either invest the
time to get it right, or delete it.  If you're interested
in the former, I can recommend a few sources:

Nick Danziger, "Danziger's Travels", on the unauthorized
travels of a Brit through Asia, including China and Tibet,
during the early 1980s.  Danziger isn't the best travel
writer around, but he's one of the crazier travelers.  You
might also want to look at the chapter on China in Pico
Iyer's "Video Night in Kathmandu", which has the memorable
line "if this is communism, who needs capitalism?" w.r.t.
the PRC's occasional pretense to still be a communist state
(the immediate cause is exposure to the luxuries of a Chinese
five-star hotel).

There are a lot of web sites with information on Tibet,
its relations with China, and the Dalai Lama.  Just search.