Veterans Leander Paes and Mahesh Bhupathi and debutants Rohan Bopanna and Aisam-ul-haq Qureshi were, on Tuesday, placed in different groups for the season-ending ATP World Tour finals, starting, in London, on Sunday.
Ramanathan, who is seeded 15th in the Qualifiers, lost 3-6, 4-6 to Italian Simone Bolleli, while 239th ranked Sumit Nagal, who is going through a rough patch, suffered his eighth straight first round defeat when he was thrashed 2-6, 0-6 by Poland's Kamil Majchrzak, ranked 192.
Leander Paes and Mahesh Bhupathi revived their ATP World Tour finals campaign with a straight- set victory over Jurgen Melzer and Philip Petzschner in a group A round-robin match, in London, on Wednesday.
The Czech Republic was enjoying a hat-trick of Wimbledon triumphs on Sunday when Iveta Benesova teamed up with Austrian Juergen Melzer to capture the mixed doubles title with a 6-3, 6-2 win over Mahesh Bhupathi and Elena Vesnina.
India's Leander Paes and his Czech partner, Lukas Dlouhy, advance into the next round of the US Open.
Leander Paes and Lukas Dlouhy overcame two rain interruptions and a strong challenge from Swede Johan Brunstrom and Jean-Julien Rojer of the Netherlands Antilles 6-3, 6-7 (8-6), 7-5 to enter the second round of the men's doubles match at the French Open in Paris on Thursday.
Mahesh Bhupathi and Max Mirnyi cruised into the second round of the French Open men's doubles after a straight sets victory over Jurgen Melzer and Philipp Petzschner in Paris on Wednesday.
Defending champions Leander Paes and Lukas Dlouhy have been seeded third for the men's doubles at the French Open. They open their campaign against Swede Johan Brunstrom and Jean-Julien Rojer of the Netherlands.
India's Rohan Bopanna and his Pakistani partner Aisam-ul-Haq Qureshi crashed out in straight sets from the doubles quarter-final of the Wimbledon in London.
Third seeds Leander Paes and Mahesh Bhupathi saved a match point en route to a hard-fought three-set win over Oliver Marach and Janko Tipsarevic to book a berth in the final of the Sony Ericsson Open tennis tournament in Miami.
While champions have crashed all around him at Roland Garros, Rafael Nadal has arrived at the French Open semi-finals unruffled and bang on course to reclaim his crown.
Late riser Novak Djokovic knows at least one thing might play in his favour if he gets through to the French Open semi-finals to face Rafael Nadal - he may not have to play before lunchtime.
Second seed Novak Djokovic produced a few flashes of temper as he fought back from a set and a break down to beat Cypriot Marcos Baghdatis 6-7, 6-3, 6-4 in the Dubai Championships semi-finals on Friday.
Top seeds Leander Paes and Lukas Dlouhy on Friday earned a shot at the title of the season opener ATP Brisbane International event after overcoming a second set lapse against Jurgen Melzer and Philipp Petzschner in Brisbane.
Leander Paes and Lukas Dlouhy advanced to the semi-finals of the doubles event of the ATP Brisbane International after getting a walk over from the local pair of Ashley Fisher and Stephen Huss on Thursday.
Top seed Rafa Nadal marched into the last 16 of the Shanghai Masters with a thoroughly entertaining 6-2, 6-7, 6-4 victory over American James Blake on Wednesday.
Third seeds Mahesh Bhupathi and Mark Knowles edged past Jeff Coetzee and Jurgen Melzer 7-6(2), 6-4 to book a quarter-final berth in the Rogers Cup, an ATP Masters 1000 tournament in Montreal. The Indo-Bahamian pair had to battle for one hour and 27 minutes to dispatch a fighting South African-Austrian pair in the second round on Wednesday night.
David Ferrer and former Roland Garros champion Juan Carlos Ferrero had a bad day at the office as the Spanish contingent experienced mixed fortunes at the French Open on Saturday.
World number four Novak Djokovic eased past Austrian Juergen Melzer 6-1, 6-4 at the Halle tournamenton Friday to set up a semi-final clash with Belgian qualifier Olivier Rochus.
Leander Paes advanced in men's doubles but it was curtains for Sania Mirza who crashed out of the women's singles event after a straight-set loss to 12th seed Italian Flavia Pennetta in the second round of the BNP Paribas Open in Indian Wells.
The top seeds beat Igor Kunitsyn and Jeff Thomas 6-3, 6-2 to enter the semi-final of the Memphis Open.
Leander Paes and Lukas Dlouhy survived a scare before beating Jurgen Melzer and Todd Perry in the first round of the Euro 891,000 Swiss Indoor ATP tournament in Basel. The third seeded Indo-Czech pair shrugged off the initial hiccups to beat the unseeded Austrian-Australian pair 2-6, 6-3, 10-6 in one hour and nine minutes to advance to the quarter-finals of the hard court event.
Top seed David Ferrer survived a scare before beating local favourite Takao Suzuki 4-6, 6-3, 6-2 to reach the Japan Open quarter-finals in Tokyo on Thursday. Second seed Andy Roddick joined him in the last eight, the big-serving American overpowering Austrian Juergen Melzer 7-6, 6-2 under floodlights.
Argentina, the Czech Republic and Spain also booked their places in the last eight by opening up 3-0 leads.
Leander Paes and Mahesh Bhupathi went down in straight sets to the unseeded Croat-Austrian pair of Mario Ancic and Jurgen Melzer in the final of Ordina Open. The second seeded Indians, who were aiming for their first ATP title together in four years, went down 6-7 (5), 3-6.
Fourth seed Nikolay Davydenko threw away a two-set lead before going down 4-6, 2-6, 6-2, 6-2, 6-4 to Croatian Ivan Ljubicic in the third round of the French Open on Saturday. Ljubicic, seeded 28th, will next face France's Gael Monfils, who beat Austrian Juergen Melzer.
Lleyton Hewitt beat Spaniard Juan Carlos Ferrero 7-6, 6-4 in the first round of the Montreal Masters.
Doubles duo Sonchat and Sanchai Ratiwatana have made headway in top-flight tennis and serving the Thai treat at the 2008 Chennai Open.
Germany's Philipp Kohlschreiber will take on former Australian Open semi-finalist Marcos Baghdatis in the other semi-final at the Munich Open.
The Indo-Czech duo beat Mardy Fish and Robby Ginepri of America in the quarter-finals of the BA-CA Tennis Tournament in Vienna, Austria.
The second semi-final at the Las Vegas Open will be between Russian Evgeny Korolev and Austrian fourth seed Juergen Melzer.
World number 19 Moya battled past Argentine Juan Martin Del Potro 7-5 3-6 7-5 in their third-round match, while Hewitt, ranked 20, eased to a 6-3 6-3 win over Austrian Juergen Melzer.
The Indo-Czech duo beat Austria's Julian Knowle and Jurgen Melzer 6-4, 6-7 (1), 10-6 over in the second round.
Russia, losing finalists to the US last year, also went 2-0 up on day one, helped by misfortune in the Serbian camp.
Fifth seed Gonzalez next faces Andy Roddick atthe Vienna Open.
Top seed Roger Federer dispatched Greek third seed Stefanos Tsitsipas 6-4, 6-4 in the semi-finals of the Swiss Indoors championships in Basel.
The former world number one beat Austrian Juergen Melzer for his first tournament victory in eight months.