[citation needed] The aerodynamic characterization research was conducted at the National Aerospace Laboratories' 1.2m Trisonic Wind Tunnel Facility.

The initial project framework of the Integrated Guided Missile Development Program outlines the variants in the following manner.

[7] Prithvi I is a single-stage liquid-fuelled surface-to-surface ballistic missile having a maximum warhead mounting capability of 1,000 kg, with a range of 150 km (93 mi).

Two Prithvi-II tactical surface-to-surface short-range ballistic missiles were test fired from the Integrated Test Range (ITR) on Abdul Kalam Island in the Bay of Bengal off the coast of Odisha, according to government sources cited in local media reports.

[20] On 4 December 2019, another night trial was conducted off Odisha coast at 07:48 pm from Launch Complex III of Integrated Test Range in Chandipur.

[21] The Strategic Forces Command conducted night trial of Prithvi II in full operational configuration from Launch Complex III of Integrated Test Range on 23 September 2020.

[43] Dhanush (Sanskrit: धनुष, "Bow") is a variant of the surface-to-surface or ship-to-ship Prithvi III missile for the Indian Navy.

It is capable of carrying both conventional as well as nuclear warheads with pay-load capacity of 500 kg-1000 kg[44] and can strike targets in the maximum range of 750 km (470 mi).

A new variant of the Prithvi-III missile, named Dhanush, was test fired from the Rajput in March 2007 and successfully hit a land-based target.

[46] The missile was successfully tested-fired from INS Subhadra, which was anchored about 35 km (22 mi) offshore from the Integrated Test Range at Chandipur on 13 December 2009.

[52] A successful user trial was conducted from a naval ship on 23 February 2018 by the Strategic Forces Command off the Odisha coast.