Here's my analysis thus far:
Grammar mistakes: These are incredibly easy to have. I am an English whiz (not to brag) and a lover of all things grammar, and I still screw things up all the dang time. BUT, you had very few of these, and since they're just simple typos that you'll easily discover anytime you go through for another edit, I don't even feel the need to point them out. You're clearly capable of writing good, logical paragraphs, so kudos to you for your impressive work.
Backstory: Okay, so I hear people all the time saying, "Don't give us a background info dump during the first chapter," but I personally think that there's nothing wrong with this so long as you do it right. I feel like the backstory revolving around Ram's friend, Anthony, might be considered an info dump, but I'm not necessarily recommending you change it because I liked it a lot. I believe that the information is quite important to the story, so I don't care what people say about backstories on page one. I think you're justified here. Others may disagree, so take that as you will, and keep in mind that my opinion will vary from the next reader's.
Characters: I'm barely into the story, so I can't tell you who my favorite character is or how endearing they are, but I'm sure this will become more clear to me as I watch their actions and behavior throughout the story. I will say that, despite the fact Anthony is dead, I already like him.
Writing style: This is my favorite part. Your writing style. I'm a fan of this. It was humorous to me without being overly goofy, and I'm that one jerk that loves humorous writing in a dark setting, so this immediately had my attention from the first few paragraphs. Intelligence and humor combined equal wit. I love wit. You're witty. Brilliant, my friend. Brilliant.