मेरे बैग में पैसा है।

Because में is a postposition, and Hindi nouns/pronouns often change form before a postposition.

• मेरा = my in the direct form
• मेरे = the oblique form used before a postposition

So:

• मेरा बैग = my bag
• मेरे बैग में = in my bag

This is a very common pattern in Hindi:

• मेरे घर में = in my house
• मेरे दोस्त के साथ = with my friend

So here, मेरे is used because बैग is followed by में.

में means in or inside.

Hindi uses postpositions, which come after the noun, unlike English prepositions, which come before it.

So:

• बैग में = in the bag
• literally: bag in

This is one of the first big word-order differences English speakers notice in Hindi.

Hindi usually puts the verb at the end of the sentence.

So the structure here is:

• मेरे बैग में = in my bag
• पैसा = money
• है = is

Literally, the sentence is closer to:

In my bag money is.

That sounds odd in English, but it is normal in Hindi. Hindi is generally an SOV language:

• Subject / topic
• Object or other information
• Verb at the end

Good question. पैसा can mean:

• a coin / a paisa in some contexts
• money in a general, uncountable sense in everyday speech

In this sentence, पैसा है naturally means there is money.

Hindi often uses a singular-looking noun for something that English also treats as uncountable:

• पानी है = there is water
• दूध है = there is milk
• पैसा है = there is money

So even though पैसा is grammatically singular here, the meaning is the general idea of money, not necessarily one coin.

Hindi often expresses there is / there are without a separate word for there.

So:

• मेरे बैग में पैसा है = There is money in my bag

The idea of existence is carried by है, together with the location phrase मेरे बैग में.

This is very common in Hindi:

• कमरे में एक कुर्सी है = there is a chair in the room
• टेबल पर किताब है = there is a book on the table

Hindi does have words like वहाँ for there, but they are only used when you specifically want to say there as a location:

• वहाँ पैसा है = there is money there

बैग is a borrowed word from English bag, and it is very common in modern Hindi.

Hindi uses many English loanwords in everyday speech, especially for modern objects:

• बैग = bag
• बस = bus
• फोन = phone
• ट्रेन = train

Even though the word comes from English, it behaves like a Hindi noun in the sentence:

• बैग में = in the bag
• बैग का = of the bag

So yes, it is an English borrowing, but it functions normally in Hindi.

बैग is usually treated as masculine in Hindi.

Gender matters in Hindi because adjectives and some verb forms can change depending on the gender and number of the noun.

In this sentence, gender does not affect much visibly because:

• पैसा is masculine singular
• है works for singular regardless of gender in the present tense
• बैग is inside a postpositional phrase, so it does not directly control the verb here

But in other sentences, you may notice gender-related changes:

• मेरा बैग = my bag
• मेरी किताब = my book

So yes, gender matters in Hindi, but this sentence does not show very many obvious gender changes.

A rough guide:

• में = mein, with a nasal sound
• है = hai

A few details:

• The dot-like mark above में shows nasalization
• में is not exactly English main, but that is a useful approximation for beginners
• है sounds roughly like hai in high, but shorter and lighter in natural speech

Whole sentence, roughly: mere bag mein paisa hai

A more natural pronunciation may sound like: मेरे = meh-re बैग = like English bag में = mein पैसा = pai-sa है = hai

Yes, absolutely.

• मेरे बैग में पैसा है = there is money in my bag
• मेरे बैग के अंदर पैसा है = there is money inside my bag

The version with के अंदर is a bit more explicit about inside.
The version with just में is simpler and very natural in everyday speech.

So:

• में = in
• के अंदर = inside

Both are correct.

Hindi often expresses possession differently from English.

English says:

• I have money in my bag

Hindi often prefers a structure more like:

• In my bag money is

That is why you see:

• मेरे बैग में पैसा है

Hindi does have ways to express possession, such as:

• मेरे पास पैसा है = I have money

But that sentence means I have money in a general sense, not specifically in my bag.

So:

• मेरे पास पैसा है = I have money
• मेरे बैग में पैसा है = There is money in my bag

Sometimes, yes, but it changes the feel a bit.

• पैसा often means money in a general sense
• पैसे can mean money too, but often with a more countable or plural sense, like funds / some money / coins / rupees

So both may appear in real Hindi:

• मेरे बैग में पैसा है = there is money in my bag
• मेरे बैग में पैसे हैं = there is money / there are some funds / there are some coins in my bag

Notice that with पैसे, the verb usually becomes plural:

• पैसे हैं not
• पैसे है

For a beginner, पैसा है is a very natural sentence to learn first.

Because पैसा is treated as singular here.

• पैसा है = money is / there is money
• पैसे हैं = monies / funds / coins are

So the verb agrees with the noun being treated as singular or plural:

• किताब है = there is a book
• किताबें हैं = there are books

In your sentence, पैसा is singular in form, so है is correct.

Hindi word order is flexible, but some orders are more natural than others.

The most neutral version is:

• मेरे बैग में पैसा है।

You could also hear:

• पैसा मेरे बैग में है।

That version puts more focus on money. It can sound like:

• The money is in my bag or
• Money is in my bag

So both can be correct, but the original sentence is the most natural basic way to say it.

No. Hindi does not have articles like English a, an, and the.

So Hindi often leaves that idea to context.

• बैग can mean a bag, the bag, or just bag, depending on context
• पैसा can mean money or the money, depending on context

In this sentence, English naturally translates it as:

• There is money in my bag

But Hindi does not need a separate word for a or the.