I will never buy a mutual fund... i am happier making my own mistakes.
Besides.. except probabaly a few, their NAVs go up when market goes up, their NAVs go down when market goes down... kind of defeats the purpose of having fund managers, as even they dont know anything, but draw huge salaries, from funds which are investors hard earned money.
If i really had to go the safest way, i would just divide my money into nifty 50 (probabaly leave 5-10 that i didnt like) and play SIP with them, or just buy in one go...
best wishes,
samir.