उपन्यास का नवीनीकरण करती हूँ क्योंकि अभी पढ़ रही हूँ।

Yes. Hindi often leaves out the subject when it is clear from the verb.

Here, करती हूँ and पढ़ रही हूँ both show first person singular with हूँ, so the speaker is understood to be I.

So the full version could be:

मैं उपन्यास का नवीनीकरण करती हूँ क्योंकि अभी पढ़ रही हूँ।

But in normal Hindi, leaving out मैं is very common.

Here का links उपन्यास with नवीनीकरण and means something like:

• the renewal of the novel
• the novel’s renewal

So:

• उपन्यास = novel
• नवीनीकरण = renewal
• उपन्यास का नवीनीकरण = renewal of the novel

Because नवीनीकरण is masculine singular, the linker is का. If the noun after it were feminine, you would expect की instead.

Hindi very often uses a noun + करना structure where English might prefer a single verb.

So:

• नवीनीकरण = renewal
• करना = to do

Together, नवीनीकरण करना means to renew.

This is very common in Hindi. Similar patterns are:

• फ़ैसला करना = to decide / make a decision
• सफ़ाई करना = to clean / do cleaning
• कोशिश करना = to try / make an effort

So नवीनीकरण करती हूँ literally means do renewal, but naturally it means renew.

This is a very good question, because this sentence sounds a little unusual for that reason.

• करती हूँ is usually habitual/simple present: I do / I usually do
• कर रही हूँ is present progressive: I am doing

Since the sentence also has अभी पढ़ रही हूँ (I am reading [it] right now / currently), many learners would expect the first part also to be progressive:

उपन्यास का नवीनीकरण कर रही हूँ क्योंकि अभी पढ़ रही हूँ।

That would sound more natural if the meaning is: I am renewing the novel because I am still reading it.

So the original sentence is understandable, but कर रही हूँ may fit the context better than करती हूँ.

Those forms show that the speaker is female.

In Hindi, participles and some verb forms agree with gender. So:

For a female speaker:

• करती हूँ
• पढ़ रही हूँ

For a male speaker:

• करता हूँ
• पढ़ रहा हूँ

So a man would say:

उपन्यास का नवीनीकरण करता हूँ क्योंकि अभी पढ़ रहा हूँ।

Or, if using the more natural progressive version:

उपन्यास का नवीनीकरण कर रहा हूँ क्योंकि अभी पढ़ रहा हूँ।

Hindi often drops objects when they are obvious from context.

In English, you would usually say: because I am still reading it

In Hindi, once उपन्यास has already been mentioned, the object can be omitted:

क्योंकि अभी पढ़ रही हूँ।

The listener naturally understands that the speaker means the novel.

If you want to make it explicit, you could say:

क्योंकि मैं अभी उसे पढ़ रही हूँ।

Here उसे means it / that.

Literally, अभी often means now / right now. But in context, it can also help convey the idea of still, especially when the meaning is something like:

I’m renewing the novel because I’m still reading it.

So in this sentence, English may translate it more naturally as still or currently, even though the core meaning of अभी is now / at present.

A more explicit way to say still in Hindi would be:

क्योंकि मैं अभी भी उसे पढ़ रही हूँ।

Here अभी भी = still / even now.

क्योंकि means because.

It introduces the reason:

• main statement: उपन्यास का नवीनीकरण करती हूँ
• reason: क्योंकि अभी पढ़ रही हूँ

Hindi does not require a dramatic word order change after क्योंकि. The reason clause usually stays in normal Hindi order.

You can also include the subject for clarity:

...क्योंकि मैं अभी उसे पढ़ रही हूँ।

That is very natural.

Yes. उपन्यास is masculine in Hindi.

That matters because in X का Y, the का / की / के agrees with the following possessed noun or linked noun. Here the key noun is नवीनीकरण, which is also masculine singular, so का is used.

So the phrase is:

उपन्यास का नवीनीकरण

If the linked noun were feminine, you would use की instead.

It is understandable, but it sounds somewhat formal and slightly bookish, mainly because of नवीनीकरण.

नवीनीकरण is a fairly formal word for renewal. In everyday contexts, speakers might choose a simpler or more context-specific expression, especially if they are talking about renewing a library loan.

Also, as mentioned earlier, करती हूँ may sound less natural here than कर रही हूँ.

A more natural version might be:

मैं उपन्यास का नवीनीकरण कर रही हूँ क्योंकि मैं अभी उसे पढ़ रही हूँ।

Or, if the context is clearly a library book, people might use a phrase closer to renewing the book/loan, depending on the situation.

Yes. A fuller version that is easier for learners to parse is:

मैं उपन्यास का नवीनीकरण कर रही हूँ क्योंकि मैं अभी उसे पढ़ रही हूँ।

Why this version is easier:

• मैं is included
• कर रही हूँ clearly shows an ongoing action
• उसे explicitly gives the object it
• both clauses are complete

So if you are learning, this expanded version may be easier to understand, even though Hindi often omits parts that are obvious from context.