Sanjay Desai is a supporting character, and antagonist, and was Eichhorst's close associate, In fact in the third season episode entitled "Madness", Eichorst said he is "A very impressive young man". He serves as the quaternary antagonist of Season 3, and (possibly) a tertiary antagonist in Season 4.
Nothing is known about Sanjay's life before the outbreak, except that he lived somewhere in New York and assumingly worked as an associate for another business.
Season 3 Edit
Sanjay comes into Palmer's office with Thomas Eichhorst. Once they sit down, Palmer faints. Thomas Eichhorst calls in the nurse to help him. The nurse runs in to check on Palmer, the nurse picks up Palmer and asking for help to pick him up. Sanjay helped as the both of them lay him down on the couch. Sanjay introduces himself as his new associate and tells him about the special cargo from Egypt. Thomas Eichhorst tells Palmer to alert them when the cargo comes in to New York. Sanjay told him to make sure it docks.
Season 4 Edit
Desai is suffering from his almost lethal crash in the season 3 finale when he was left by Eichhorst in the car to either die or help himself. As a consequence he requires the use of a cane and walks with a limp.
Desai is working as an administrator for the Partnership that seems to govern worldwide or at least all over the United States. He oversees a breeding facility that tries to selectively increase the number of babies with B+ blood type since this blood is either the favourite flavor or most nutritious for strigoi. He proposes a colaboration to Dutch Velders who is unsing a false name; Miranda, possibly to protect herself from repercussions for her role in the appocalypse. Desai starts out with a friendly front which he drops when Dutch shows defiance and skepticism of the situation's pretty picture Desai still tries to uphold.
(Promo contents) Edit
As seen in the season 4 promo Sanjay seems to be alive and well after the nuclear blast. He is later seen in a hospital (assuming The Partnership's hospital) with Dutch Velders and a couple of doctors trying to deliver a baby from a pregnant woman. At the end of the promo Dutch Velders is seen trying to slit his throat.
The Novel(s) lack any character bearing that name. But the use of a cane after the detonation and car crash that necessitate it's use hint that Desai's role fills the gap Dr. Barnes can no longer assume in the TV Series since he was killed by Goodweather.