Mankad progressed after his opponent Jamie Delgado of England retired due to dehydration, while Capkovic beat Karan Rastogi 6-4, 6-2 in the other semi-final.
The Indian ace went down to sixth seed Yen-Hsun Lu of Taipei at the ATP Chennai Open Tennis championship.
They play Daniel Nestor of Canada and Lina Krasnoroutskaya of Russia for a berth in the quarter-finals.
\n\nThe third seeded Taipei player beat Tushar Liberhan to join Karan Rastogi, Somdev Verman and Arun Prakash in the semis in the Asian Junior tennis championships.
Leander Paes and Rohan Bopanna won the doubles match 6-2, 6-2, 6-2 to help India to a 1-0 lead against Kazakhstan.
The Wimbledon girls' doubles champion was beaten by Stephanie Dubois at the Canada Open.
Sania Mirza, Sanna Bhambri and Somdev Varman lost in the singles first round at the French Open.
However, Somdev Dev Varman and Karan Rastogi fell in the first round of the ITF Grade I tournament.
They suffered first round defeats in the ATP Challenger.
Pakistan took an unbeatable 2-0 lead over India in the second tennis Test in Lahore.
Kanika's problem is so ridiculous, it is surprising she did not discover till the age of 32 what every teen knows, sighs Deepa Gahlot.
Meet the new class of Forbes India 30 Under 30.
The hits and misses of the week.
The hits and misses of the week.
Commonwealth Games champion Parupalli Kashyap knocked out top seed Lee Hyun Il of Korea in the men's singles opening round of the US Open Grand Prix Gold badminton tournament in Anaheim, United States.