The assumption that the launch range of the anti-ship cruise missile 3M55 of the Onyx complex could reach 800 km, expressed by the author of the blog about a year ago (ref. 1), was confirmed by our Indian colleagues and a source in the Russian space-rocket industry. Moreover, there is reason to believe that the range of "Onyx" has already reached or is close to 1000 km.
On 20.01.2018, the Hindustan Times newspaper (New Delhi) published a report that by the end of the year India is going to test the Brahmos SCR with a range of more than 800 km (more than 800 km - reference 2), and a week later (26.01) the competent anonymous source of Interfax-AVN confirmed: "India's decision to increase the BraMos's flight range to 800 km is technically feasible" (ref. 3).
The progress of Indian rocketry after the country's accession to the Missile Technology Control Regime is impressive. Until June 27, 2016 (the date of joining the MTCR), the range of Brahmos did not exceed 300 km (290 km), on March 11, 2013, the launch was launched to a range of over 400 km, and at the end of 2018, an already impressive result was planned. At the same time, we should not forget that BrahMos Aerospace is a joint Russian-Indian company, of which the engineering industry is a participant, and the missile itself (analogous to 3M55) is nothing but a gift that fell to the heads of Indians in critical for the Russian OPK 1990's.
In military-technical cooperation, there is one unshakable rule: the TTX of weapons and military equipment supplied abroad must be known to be lower than the WME of its own armed forces. No matter how warm and friendly the relationship with the buyer country is at the time of the deal, there is no guarantee that sooner or later the weapons sold by us will not be turned against ourselves. As for the possibilities of science and industry of India (or the same China) to create new recipes for rocket fuel (factor No. 1 for increasing range), with all due respect to partners, we have to state our undisputed advantage (for years, if not for tens of years ), because neither the Hindus nor the Chinese participated in the arms race during the first cold war, which required extreme strain of forces and all intellectual resources.
Most likely, the 800-km range of the new version of "Brahmos" is another gift from Moscow, caused, on the one hand, by the persistence of the Indian negotiators, who sometimes make unrealistic requests (for example, about the leasing of "Ash") in order to get something more accessible, with another - the opportunity to make a generous gift without sacrificing the country's defense capability. In other words, if Russia provided India with a recipe for liquid and solid fuel, which allows Brahmos to fly 800 km, then we already have new, more energy-intensive recipes on which the Onyx flies, say, 1000 km.