Twenty seven years after it was first conceived, Tejas has been declared fit for use. This is India's first fighter jet to be built largely at home. The actual work on this Light Combat Aircraft (LCA) began exactly a decade ago. Rs. 14, 500 crore have been spent on developing the Tejas; obstacles included skepticism at home and foreign countries that refused to share technology. That's what makes the Tejas so special for the DRDO's Aeronautical Development Agency.