The fund's average AUM was up by Rs 89.87 billion or 6.35 per cent, to Rs 1.50 trillion -- an industry milestone.
ICICI Prudential Mutual Fund maintained its second position at Rs 1.37 trillion, up by 7.13 per cent, or Rs 91 billion.
Reliance Mutual Fund was ranked third at Rs 1.26 trillion as its average AUM rose by Rs 40.01 billion or 3.28 per cent.
The share of the top-five fund houses was 55 per cent, which is same as the previous quarter.
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The industry's AAUM exceeded the Rs 11-trillion mark during the quarter, the release said.
Average AUM rose by 4.34 per cent, Rs 459.46 billion, to Rs 11.06 trillion (excluding fund of funds) in the quarter ended December 2014, a CRISIL release said.
The industry's average assets increased by 26.14 per cent, or Rs 2.29 trillion in 2014. Growth in the third quarter was primarily driven by rise in assets of equity funds.
For the year, the category gained 71.68 per cent or Rs 1.40 trillion.
For 11 months of the year, the category registered inflows of Rs 497.26 billion, compared with outflows of Rs 127.05 billion in the similar period of 2013.
Long-term debt funds' average AUM gained 6.37 per cent or Rs 41.91 billion to Rs 700.30 billion, while gilt funds' assets rose 22.86 percent or by Rs 12.99 billion to Rs 69.84 billion.
For the calendar year, long-term debt and gilt funds' assets declined 35 per cent and nine per cent respectively, the release said.
Liquid funds were the biggest drag on industry assets, with the category falling 5.25 per cent, or Rs 150.25 billion, to Rs 2.71 trillion. The category witnessed 17 per cent rise in assets in 2014.
Gold exchange traded funds (ETFs) continued the downtrend as the category marked its fifth consecutive quarterly fall. The category's AUM fell 6.76 per cent, or Rs 5.21 billion, to Rs 71.78 billion. This is due to persistent outflows despite a marginal rise in price of underlying assets during the quarter.
Average AUM of direct plans rose 4.14 per cent, or Rs 146.19 billion, to Rs 3.68 trillion at the end of 2014.
The share of direct plans, however, remained steady at 33 per cent of the industry's AUM (excluding fund of funds) in the reported quarter compared with the previous quarter but was higher compared with 30 per cent in the year-ago quarter, the release said.