13E & 16E are a historical accident. When the first satellites were launched the beam shaping technology was rudimentary to say the least & 13E & 16E were amongst the first European slots to be activated.
The days of the ultra wide beam satellite are over though - with more and more satellite slots being opened up the coverage zones of new birds is being cut back to avoid interference. You can wave goodbye to a lot of 9E when the new satellite takes over in the next year or so - the multiple spot beams will see to that
Hard though it is to accept, Indian coverage is low on the priorities for most of the European zone operators, and they certainly arent going to design wide beam craft just so a few thousand hobbyists can watch European tv.
One of the biggest reasons why european/russian beams dont reach India, is bcoz some of the server owners/ cccam owners dont want, european/russian chnls ( specially with some adult content), to be available free of cost for everyone to see, via a dish system.
They want people to but server accounts, or buy international boxes ( having cards facility), by which one can watch thousands of chnls of almost all countries.
In India, costs for such boxes go upto Rs. 30,000 ( with one year of subscription)
So, u can say, its kind of an unsaid MOU between a lot of stakeholders here. Things arent that simple, as they seem to be.