Okay, so another record was broken today and openers Virender Sehwag and Gautam Gambhir started well in only their second Test match together. But before we start the celebrations, it would make sense to look at recent history and learn some lessons. What we’ll learn is that Indian opening pairs have made good starts to their association, but not managed to carry the relationship for too long. Here’s a look.Aakash Chopra and Sehwag• Together for: 10 Tests• First 100-run stand in their second Test together (2003-04)• 164 against New Zealand (Mohali)• Scores: Chopra 60, Sehwag 130Sanjay Bangar and Sehwag• Together for: 7 Tests• First 100-run stand in their third Test together (2002-03)• 201 against West Indies (Mumbai)• Scores: Bangar 55, Sehwag 147Shiv SundAr Das and Deep Dasgupta• Together for: 7 Tests• First 100-run stand in their third Test together (2001-02)• 119 against England (Ahmedabad)• Scores: Das 58, Dasgupta 60Das and Sadagopan Ramesh• Together for: 10 Tests• First 100-run stand in their sixth Test together (2000-01)• 123 against Australia (Chennai)• Scores: Ramesh 61, Das 84Ramesh and Devang Gandhi• Together for: 4 Tests• First 100-run stand in their first Test together (1999-2000)• 137 against New Zealand (Mohali) Scores: Ramesh 75, Gandhi 73