Hiro and Ando go to India in the episode "Building 26." Here's a sneak peak from the installment from the Fugitives volume.
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Enjoy this promo for Building 26. This Heroes episode airs on February 16, 2009 and is the third of volume four.
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Heroes Season 3 Episode 16 Quotes

These are our targets. Know them. Hunt them, track them and bring them home alive.

Nathan

HRG: Your mom and Lyle are safer this way.
Claire: You've been telling me that since I was 15.