International influence or lack thereof on constitution making in South Asia: a look at India, Pakistan and Nepal

What is international influence? Is it colonial or post-colonial legacies? Is it international donors? Neighbouring countries? How has the international influenced the seemingly intertwined constitution making cultures and processes of South Asia, especially in India, Pakistan and Nepal. Each of these countries have had a British influence. But, equally India's constitution crafters were intent on keeping out 'British experts' while their constitution was being drafted between 1946 to 1949. Meanwhile, Pakistan's constitution making project attracted the attention of foreign scholars. And Nepal had international donors deeply invested in their constitution making processes. What are the lessons learned from the experiences of these three countries? And what are the implications of these lessons for South Asia in particular and the world more generally?