Pls suggest some Large Cap equity Indian M.Funds which do not overlap and are not similar.?

Hi
I am thinking of investing in these Large Cap funds
1.HDFC TOP 200,
2. Birla Sunlife Frontline Equity,
3. DSP Black Rock Top 100.
But I am afraid that they overlap and are similar ,means they invest in similar holdings,companies,stocks etc.resulting in over diversification and duplication.
To avoid Duplication, Pls suggest some large cap equity Indian funds which are not similar and do not overlap.Means they are large cap and are investing in different holdings and are not similar .
Thanks