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Bringing down the cost of access to space has been an activity demanding attention of space agencies. Many countries paid attention to realize viable concepts to recover the hardware and reuse the same in multiple missions. One of the strategies is to use Reusable Launch Vehicle (RLV) which is emerging as a possible candidate for recovery of the upper or lower stages. Generally, RLV is a winged body geometry that carries the payload to the specified orbit and returns and lands on a specified location. Hence, unlike the conventional launchers, RLV encounters many technical challenges in terms of aerodynamics, aero-thermo dynamics, control systems, materials, etc. Towards this, Indian Space Research Organisation (ISRO) has been pursuing the RLV technology to achieve two-stage to-orbit (TSTO) launch capability.