Having a Jet that can take off from Earth and fly into space is a fantastic idea, but mankind's technology still hasn't advanced enough and craft like this Ramjet/Scramjet still have very limited ability. India would be better off working on their solid ASLV rockets and nitro tetroxide PSLVs, heap of research has been done into building a futuristic StarTrek/FlashGordon type ship that takles off and flies into space and the X-planes could fly a lot faster than Mach 2 ( 1290 mph ) or Mach 5 speeds. X-plane projects a still a dead end when it comes to Planetary exploration, the worst thing the USA did with this project was to award astronaut status to pilots that flew to an altitude of 50 miles ( thankfully they didn't award status to ever human on a Vomit Comet ). Now compare these planes to the real transport system like the R-7 Soyuz or STS Shuttle which flies into Space at over 620 km and reaches speed of 17,310 miles per hour, some day they might be able to build one of these planes that can rival the ability of a little Pegasus rocket. India should keep working on their bases and lauch vechicles like the new ideas for the GSLV.