There is a lot of misinformation surrounding NAVs and mutual funds - the most common one being that a mutual fund with a lower NAV would provide further scope for growth in the years to come.
To help you understand how things really work, let us look at an example.
Suppose you are an investor and buy 200 shares at a Net Asset Value of Rs. 50, and the stock market sees a surge by 10%. You would now see that the Net Asset Value is Rs. 55.
The total investment value, therefore, would be 55*200, which is Rs. 11,000.
Now, let us look at an alternative instance.
You buy 100 shares at a Net Asset Value of Rs. 100, and the stock market sees a surge by 10% again.
In that case, the new Net Asset Value would be Rs. 110.
The total investment value now would be 110*100, which gives you Rs. 11,000.
In both the instances, the total investment value is the same. Therefore, as you can see, NAV does not decide how a fund would be performing in the future.
The NAV of a mutual fund could be low due to various reasons. It could be that the fund is young, or has performed badly in the past, or because it is not as popular or widely known. Similarly, good performance of a fund cannot be guaranteed by a higher NAV. The mutual fund could have been around for a longer time, it may have performed very well in the past, or could be popular. The NAV of a mutual fund is never the factor that decides how the fund would be performing in the future.