वह मोबाइल प्लान पोस्टपेड है।

In this sentence, वह is most naturally understood as that.

Hindi वह can mean several things depending on context:

• that
• he
• she
• it

Because the noun phrase is मोबाइल प्लान, the meaning here is demonstrative: that mobile plan.

So structurally:

• वह मोबाइल प्लान = that mobile plan

In everyday speech, वह is very often pronounced as वो.

Hindi usually prefers a subject + description + is/are pattern in simple equational sentences.

So:

• वह मोबाइल प्लान = the subject
• पोस्टपेड = the description/predicate
• है = is

That gives:

• वह मोबाइल प्लान पोस्टपेड है = That mobile plan is postpaid

If you say:

• वह पोस्टपेड मोबाइल प्लान है

that sounds more like:

• That is a postpaid mobile plan

So the difference is roughly:

• वह मोबाइल प्लान पोस्टपेड है = the plan has the property postpaid
• वह पोस्टपेड मोबाइल प्लान है = identifying it as a postpaid mobile plan

Both can be valid, but they are structured differently.

है is the present-tense form of to be for a singular subject in this kind of sentence. It means is.

So:

• पोस्टपेड है = is postpaid

Hindi often places the verb at the end of the sentence, so है comes last.

Compare:

• यह अच्छा है = This is good
• वह बड़ा है = That is big
• वह मोबाइल प्लान पोस्टपेड है = That mobile plan is postpaid

Hindi does not normally use articles the way English does.

So Hindi often leaves out words corresponding to:

• a
• an
• the

Whether English uses a, the, or no article at all depends on context and translation.

For example:

• वह मोबाइल प्लान पोस्टपेड है could be translated as
  That mobile plan is postpaid

There is no separate Hindi word here for the. The definiteness comes from context and from वह = that.

पोस्टपेड is a borrowed English word, written in Devanagari script to fit Hindi writing.

This is very common in modern Hindi, especially for:

• technology
• business
• telecom
• everyday urban vocabulary

So words like these are often borrowed:

• मोबाइल
• प्लान
• पोस्टपेड
• प्रीपेड

The sentence is still perfectly normal Hindi, even though it contains English-origin vocabulary.

Many Hindi adjectives do agree, but not all of them.

There are two big patterns:

1. Variable adjectives
   These change form, for example:

   • अच्छा (masculine singular)
   • अच्छी (feminine singular)
   • अच्छे (masculine plural / polite)

2. Invariable adjectives
   These do not change form.

Borrowed words like पोस्टपेड are usually treated as invariable, so they stay the same regardless of gender or number.

So you can say:

• यह प्लान पोस्टपेड है
• ये प्लान पोस्टपेड हैं

In both cases, पोस्टपेड stays the same.

It is generally treated as masculine.

Many borrowed nouns in Hindi get assigned a grammatical gender, and प्लान is commonly used as masculine.

You can see that more clearly in other sentences, for example:

• यह प्लान अच्छा है = This plan is good

Here अच्छा shows masculine agreement with प्लान.

In your sentence, though, gender is not very visible because:

• पोस्टपेड does not change
• है does not show gender

So even though प्लान is masculine, this particular sentence does not strongly display that.

Yes. In everyday spoken Hindi, वह is very commonly pronounced and written informally as वो.

So these mean the same thing:

• वह मोबाइल प्लान पोस्टपेड है
• वो मोबाइल प्लान पोस्टपेड है

A simple way to think of it:

• वह = more formal / standard written form
• वो = very common in speech and informal writing

If you want to say Those mobile plans are postpaid, you would use plural agreement with the verb:

• वे मोबाइल प्लान पोस्टपेड हैं।

In everyday speech, वे is often said as वो or वे depending on style and region, but in standard form:

• वे = those / they
• हैं = are

So compare:

• वह मोबाइल प्लान पोस्टपेड है। = That mobile plan is postpaid.
• वे मोबाइल प्लान पोस्टपेड हैं। = Those mobile plans are postpaid.

Notice again that पोस्टपेड does not change.

A simple pronunciation guide is:

• वह ≈ vah or in everyday speech vo
• मोबाइल ≈ mo-baa-yl
• प्लान ≈ plaan
• पोस्टपेड ≈ post-paid
• है ≈ hai (like high, but shorter and lighter)

A natural spoken version is often close to:

• vo mobile plan postpaid hai

In standard Hindi, you should keep है in a full sentence like this:

• वह मोबाइल प्लान पोस्टपेड है।

In very casual speech, people sometimes omit है when the meaning is obvious, especially in conversation, advertising, notes, or headlines. But for learners, the safest rule is:

• In normal complete sentences, use है / हैं.

So the standard version is definitely:

• वह मोबाइल प्लान पोस्टपेड है।