Some interesting tidbits!

Although this a comparatively old presentation (around 2009), it provides a load of valuable information. Some information is dated and no longer applies. Many things in this presentation will already be known to people who are following the Indian Space Program closely over the last few years.

Well, the basic Mk II configuration seems to have changed a bit with the GS2 already containing 40 tons of propellant in both of its flights (D3 and D5). The MkIIA configuration will have payload fairing which will be 4m in diameter. The CUS with 15 tons of propellant is said generate 90kN of thrust against 75kN of the current engine (although it can be already throttled above 75kN but not to 90kN).