पार्टी घर में है।

Hindi usually puts the verb at the end of the sentence, so its basic word order is Subject–Object/Other information–Verb.

So:

• पार्टी = the party
• घर में = in the house / at home
• है = is

That is why पार्टी घर में है literally looks like Party house in is.

में means in or inside.

Hindi uses postpositions instead of prepositions. That means the little location word comes after the noun, not before it.

So:

• घर में = in the house / in the home

Compare with English:

• English: in the house
• Hindi: house in → घर में

Because Hindi uses postpositions, not prepositions.

English says:

• in the house
• at home
• on the table

Hindi usually says the noun first, then the postposition:

• घर में = in the house
• घर पर = at the house / at home
• मेज़ पर = on the table

So में comes after घर because that is the normal Hindi pattern.

है is the present-tense form of to be here, meaning is.

So the sentence structure is:

• पार्टी = the party
• घर में = in the house
• है = is

Together: The party is in the house or The party is at home, depending on context.

For comparison:

• singular: है = is
• plural / polite: हैं = are

Example:

• पार्टी घर में है। = The party is in the house.
• लोग घर में हैं। = The people are in the house.

Hindi does not normally use articles like English a, an, and the.

So पार्टी can mean:

• a party
• the party

The exact meaning depends on context.

That is very normal in Hindi. The listener usually understands from the situation which meaning is intended.

Good question. Many Hindi nouns do take an oblique form before a postposition, but घर does not visibly change here.

So you get:

• direct: घर
• oblique before में: still घर

That is why you see घर में, not some obviously different form.

Compare with a noun that does change:

• लड़का = boy
• लड़के में = in the boy

But with घर, the form stays the same:

• घर
• घर में

पार्टी is a borrowed word from English, and it can mean different things depending on context, including:

• a celebration / social gathering
• a political party
• a side or group in some contexts

In a simple sentence like पार्टी घर में है, many learners will naturally understand it as the party (celebration) is in the house. But context is important.

Also, पार्टी is generally treated as a feminine noun in Hindi.

Yes, you may hear both, but the nuance is slightly different.

• घर में = in the house, emphasizing being inside
• घर पर = at home / at the house, emphasizing location more generally

So:

• पार्टी घर में है। = The party is in the house.
• पार्टी घर पर है। = The party is at the house / at home.

In everyday speech, पर is often used for general location, while में sounds more specifically inside.

In a complete normal sentence, you should usually keep है.

So the standard sentence is:

• पार्टी घर में है।

In very casual speech, headlines, notes, or poetic style, Hindi sometimes drops forms of to be, but learners should not copy that at first.

If you are learning standard Hindi, use है.

You add नहीं before है:

• पार्टी घर में नहीं है।

That means:

• The party is not in the house.

This is a very common pattern in Hindi:

• वह यहाँ है। = He/She is here.
• वह यहाँ नहीं है। = He/She is not here.

Literally, घर में means in the house / in the home.

Depending on context, English may translate it more naturally as:

• in the house
• at home

If the point is physical location inside the building, in the house is better.

If the point is simply that something is happening at someone’s home, English might choose at home.

So the Hindi is the same, but the best English translation can change with context.