Explanation:

Only statement 2nd is correct.

• The Indian Space Research Organisation (ISRO) recently developed Computational Fluid Dynamics (CFD) software named PraVaHa.

About PraVaHa Software

• Parallel RANS Solver for Aerospace Vehicle Aero-thermo-dynamic Analysis (PraVaHa) is a Computational Fluid Dynamics (CFD) software developed in ISRO’s Vikram Sarabhai Space Centre (VSSC).

• It can simulate external and internal flows on launch vehicles, winged and non-winged re-entry vehicles.

• PraVaHa has been extensively used in the Gaganyaan program for aerodynamic analysis of human-rated launch vehicles, viz, HLVM3, Crew Escape System (CES), and Crew Module (CM).

• The software is secure and flexible enough to support collaborative development with academic institutions and government labs.

• Currently, the PraVaHa code is operational to simulate airflow for Perfect Gas and Real Gas conditions. 

Hence option 2nd is correct.