3 years back i started investing in mutual funds. Which is giving me good returns. My question is- i have some more money for may be 1 year max and i want to invest this amount but i am confused whether to invest in new MF or add this amount in the same which i am continuing? If i will invest in existing MF , will it have any negative impact on my portfolio when i will withdraw the lumsum money after 6 mnths or 1 year?