unclear. u want an online phd which has to be from anywhere in the world including India? or u want an online phd which is definitely not in India?
and yes, whats wrong with Indian PhDs? And how useful ARE these online things. India has great places to study, all over, explore any of Delhi, Bangalore, Mumbai or Hyderabad....
And especially for science. The IITs, the IIS, and so many more....work out a distance or part time phd, thats a much betetr and well regarded option than doing some random online thing from Timbuktu.