I found it rather readable, the constant irritants of Jai Shri Ram, and absurdist glorification notwithstanding.
The basic story is set in semi-mythical semi-historical setting of the harappan times around 2000 BC or so. There's an empire of the Suryavanshis, who bear a suspicious resemblance to the jai sri ram rajya type, artificially forced into harappan settings. ( ie the right wingers dream world etc). Shiva, is a reluctant protagonist, caught in the battle and intrigues happening there, since it seems to be his destiny.
Initially the writing seems mediocre, but the plot does pick up, and the story gets interesting, the whole 'great indian civilisation' myth notwithstanding.
Readable, bits are boring, bits are irritating, but still good enough to want to make me read the remaining 2 parts of the trilogy!