Please tell me how to play tourbo tournaments .. early stage.. mid and late stage.. what card range should i play..
Early on you can play a normal deep-stacked strategy, playing mostly pairs, Broadway
hands and suited connectors. The blinds will go up quickly so the more you can accumulate the better.
As the blinds go up and your stack size shrinks (# of big blinds and # of rounds of antes/blinds), your number of blinds should dictate your opening range. Familiarize yourself with push/fold charts and know approximately what cards you can play with your current number of big blinds (adjusting for table conditions, tighter if a loose table, looser if a tight table).
Pretty much everyone in these tournaments will find themselves in the 20 big blind range at some point and you should try to identify players who are opening looser than optimal so you can re-steal from them, that is going all in over their raise (in addition to opening good value hands yourself).
An important idea in turbo tournaments is making sure you don't blind down so low that the other players will be forced to call you, if you are down to 10 big blinds you should be looking to shove first in with high card strength and pairs.
There are a ton of other considerations of course and you would surely benefit from viewing some Turbo MTT Videos on any training site.
Hope this helps - good luck!