I do live conversions into local currencies (using the Open Exchange Rates API which I am extremely happy with), but I haven’t tried fixed prices in local currency yet.
Is that 20% of paid users in India? If so, that’s amazing! I’ve tried large discounts for India (around ~75%) with no luck. I get hardly any sales from there, but a lot of trial downloads & a ton of customer support enquiries, often for competitors products (!) and the rest are similar to “this is my hobby so I demand a free copy”. The handful of paying customers I’ve had from India have been awesome, though.
[Edit: I just got another enquiry from India for a competitor’s product. I looked them up - the competitor is based in India, and charges 4x as much as I do. They only allow their software to be delivered via courier & with an accompanying hardware dongle. Maybe discounting prices to India isn’t as important as fighting cracks.]