Compared to bank deposits, liquid funds are tax efficient. Moreover, dividends from liquid funds are tax-free in the hands of investor. For the time frame that you have in mind; this could be a better option compared to bank deposit.
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Also, know how to buy mutual funds online:
1) DSP BlackRock Mutual Funds:
http://prajnacapital.blogspot.com/2011/05/buying-dsp-blackrock-mutual-funds.html
2) Reliance Mutual Funds:
http://prajnacapital.blogspot.com/2011/06/buying-reliance-mutual-funds-online.html
3) Reliance Mutual Funds:
http://prajnacapital.blogspot.com/2011/07/buying-hdfc-mutual-funds-online.html
4) Sundaram Mutual Funds:
http://prajnacapital.blogspot.com/2011/07/buying-sundaram-mutual-funds-online.html
5) Birla Sunlife Mutual Funds:
http://prajnacapital.blogspot.com/2011/06/buying-birla-sunlife-mutual-funds.html
6) UTI Mutual Funds:
http://prajnacapital.blogspot.com/2011/06/buying-uti-mutual-funds-online.html
7) SBI Mutual Funds:
http://prajnacapital.blogspot.com/2011/06/buying-sbi-mutual-funds-online.html
8) Edelweiss Mutual Funds:
http://prajnacapital.blogspot.com/2011/06/buying-edelweiss-mutual-funds-online.html
9) IDFC Mutual Funds:
http://prajnacapital.blogspot.com/2011/06/buying-idfc-mutual-funds-online.html