New Delhi, July 28 -- BETA, BRAVO, CORAL, COLD and SKY across; BROOK, EARLY, TVAD, AOL and BCCS down.

If you are still working through the puzzle and want hints before the full solution, three clues are below. Skip ahead for the complete answer grid.

Hint 1: Two of today's Across answers are the second entry in different alphabets, one ancient and one invented in the 20th century.Hint 2: One Down answer describes what a stream does when it moves over shallow rocks.Hint 3: One Down answer is a discreet email action that most inboxes support but few people use deliberately.

Across

1A: BETA - Letter after alpha, in the Greek alphabet

5A: BRAVO - Letter after Alfa, in the NATO phonetic alphabet

6A: CORAL - Barrier reef organism

7A: COL...