As Narendra Modi becomes India's longest-serving, popularly-elected head of government, comparative assessments with the man he has surpassed on that specific metric are inevitable. Separately, a sober, rather than superficial, reflection on the milestone is also merited.
The first question is obviously the easier one to attempt to answer, even if the true judgement belongs to history. For the moment, it will suffice to say Jawaharlal Nehru and Modi are likely to go down as India's most consequential Prime Ministers in terms of the lasting impact of their legacies.