Maximizing benefits from Public Provident Fund (PPF) investments in India requires investors to ensure that deposits are made by April 5 each year. This is because the interest calculation for PPF accounts is based on the minimum balance between the 5th of the month and the end of the month. Making timely deposits can significantly enhance the returns on PPF investments, while tardy contributions may result in potential interest loss. Therefore, it is crucial for investors to adhere to the April 5 deadline to optimize the growth of their PPF accounts. By staying informed and proactive about deposit deadlines, investors can make the most of their PPF investments and secure their financial future.