Immortal by Krishna Udayasankar
Professor Bharadvaj is more than just another whisky-loving, gun-toting historian-for-hire. Behind the assumed identity of the cynical academic is a man who has walked the earth for scores of years. He is Asvatthama - the cursed immortal, the man who cannot die.
When Professor Bharadvaj is approached by the enigmatic Maya Jervois to search for a historical artifact unlike any other, he is reluctant to pursue it. The object in question, the Vajra, is rumored to possess incredible alchemical powers, but the Professor does not believe it exists. After all, he has spent many lifetimes - and identities - searching for it, in a bid to unearth the secret to his unending life.
Yet, as the evidence of its existence becomes increasingly compelling, the Professor is plunged into an adrenaline-fueled adventure that takes him from the labyrinthine passages beneath the Somnath temple to the legendary home of the siddhas in the Nilgiris, and finally into the deserts of Pakistan to solve a confounding puzzle left behind by the ancients.
But who is behind the dangerous mercenaries trying to thwart his discoveries at every step? And is the Professor - a legendary warrior in a long-ago life – cursed to walk the path of death and bloodshed forever?