CHEQUES/DRAFTS - PRESENTATION

I am a businessman. Usually I wants to travel all over the world in relation with my business. sometimes i couldn't present my cheques/drafts within the period. so i want to know the present validity date for a cheques/drafts .?

In India, it has been the usual practice among bankers to make payment of only such cheques and drafts as are presented for payment within a period of six months from the date of the instrument.