I have been tracking Nifty since months, to exploit investment opportunity. It is always better to invest (in the market) after a correction. You get competitive prices which results in potentially more upside (returns).
The indicator ploted here is Bollinger bands in weekly time frame. You may see that every time Nifty hit lower Bollinger bands, eventually it bounced back up. So, there is a high probability that "history will repeat itself".
So, if you were waiting for right time to invest in, this is the time (only when Nifty touches lower Bollinger bands).
Pickup the fundamentally strong companies (at least 10 companies) and invest "equal amount" in each of them. Or you can consider buying any Nifty 50 ETF (if you are very conservative/not an experienced).
It may also happen that the Nifty will correct (19% from the highs, somewhat around 15090). So, please be ready for this.
Remember, the market will "not jump as soon as you buy a stock". It may "fall even more" and/or consolidate for some weeks/months. It "does not mean sell". STAY INVESTED.
Disclaimer: I am not a SEBI certified investment advisor. The facts and suggestion given in the above article is based on my understanding and experience in the markets. Please consult your financial advisor before investing.