The primary component that brings uncertainty in the dual degree is PhD. Since during PhD you are supposed to produce a novel work with good amount of positive impact on the ongoing research in the field, this component is what makes the duration unpredictable.
Statistically, most of the PhD students at IIT are able to submit their thesis in 5–6 years of time. Based on these statistics, MHRD have announced a uniform 5 year duration for PhD (whether done after masters or directly after bachelors).
So your question ultimately reduces to ‘how long does it take to do PhD in IITs’?. Statistically, the answer is somewhere between 5–6 years. You need to remember that PhD is not your typical course based degree where you spend X amount of years and you obtain a degree.
Usually at good places you are not allowed to submit without some amount of good publications during your PhD work. So if you want to finish your PhD soon, you better start doing some real good research wor
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile