The book is set in same universe as that of the Meluha trilogy. And like Meluha trilogy, this novel has to be read without constant comparison to Ramayana as we have come to know. Treat this story how you treat any other characters that are loosely based on popular mythology. If done well, this can be an interesting trilogy, even better than Meluha perhaps. 
 Amish delivers his own (not entirely original) brand of philosophy as he explains Gods and their roles in the world. It would have given the story a depth had he taken that thought process throughout the novel instead of sprinkling it here and there when necessary. 
 The continuing use of modern colloquial terms can be awfully off putting. Amish writes "angvastram" and "India" in the same breath. Even though I was expecting to encounter words and phrases from modern times, it didn't become any less jarring. Maybe that's why the book is such an easy read. The story more or less remains the same; Amish doesn't change any major story arc from Ramayana but he gives different nuances to the character. Though the characters and their agency seem to be vastly different from the story we know, their actions and decision always fall in line with the plot. 
 Its an easy read for a boring or a lazy day. The book reads itself and you are kinda riding along with the fast paced narration. Have to give credit to Amish for that!