Since we just did a post on top 20 domains for this year, thought to do a top 20 ALL TIME highest recorded domains and their .in counterparts:

1.  NIXI (IN)
2.  India Portals (IN)
3. Christoph Hartmann (DE)
4. Itay Elnatan (US)
6. Shuang (CN)
8.  Private
9. India Portals (IN)
10. India Portals (IN)
14. Michael Trommsdorff (FR)
15. Michael Marcovici (Cayman Islands)
17. India Portals (IN)
18. Hartmann (DE)
20. Telepathy (US)