Yes bro, it's more than good for a 22yrs person.
As you said you are a fresher. So, rather than looking for a good package right now, you should look for an organization where you will get better experience, where you will be able to build up your skills.
Yes, money is important, rather one of the biggest motivation to do any work. But it's individuals choice to either run after money from the start or to run after the knowledge and ways that will earn you way more money in future.
Now, coming back to your question: 4.5 LPA as a fresher. I am an IT professional so will answer your question as per my domain only.
Almost every IT engineer (person working in Indian IT industry) starts looking for a switch in job in 2–3 years. And No one settles under a hike of atleast 50% in their first switch (remember, Indian IT industry follows a norm of only 30% hike while hiring an experienced employee). But as the package of 2–3 yrs experienced person isn't that high so many companies agree to give about 50–60% hike in salary(some even give 100%, that all depends on your skills). So, if your package is 4.5 LPA then by the time you switch your company i.e. after atleast 2 annual appraisals, your CTC will be around 5.4–5.5 (as per 40k–50k hike per appraisal). Now if you go for a switch with 50% hike, your package will be more than 8 LPA.
Now, let's do some rough calculations:
It's common to see any person making atleast 4–5 switches in first 10–12 yrs of his work life.
So, if you work in your second company for 1.5–2 yrs then in your third company you will again get a hike of atleast 30%, which will take your package to around 10.5 LPA (and that also after just 3+2+2(in current company i.e. 3rd company) = 7 yrs of your experience. So, in next 4–5 years you will be having a package of around 16–18 LPA. By the time you will be 22+12= 34 years you will be earning around 1.4L per month.
What would you demand more than this??
Note: All calculations shown are rough calculations made on assumption. You can earn more or less based on you skills and efforts.
Hope that solves your confusion.