Years of Experience: 5 Months in a product based Company.
Previous TC:  INR 1200000

Amazon(SDE-1)

Salary: INR 1450000 
Joining Bonus: INR 360000+225000
Relocation: INR 150000
Stocks: 5 shares(5%+15%+40%+40%)
T.C: INR 1960000

Expedia(SDE-1)

Salary: INR 1300000
Joining Bonus/Relocation: 7500 USD(INR 550000)
Stocks: 30000 USD(INR2200000--> 0%+50%+25%+25% )
T.C: INR 1850000

The thing is that I have already joined Amazon and its been 1 month and just got an offer from Expedia should I ask the recruiter for an increase in pay since Expedia is paying a lot in 2nd year. Or should i leave Expedia and continue working in Amazon?

I really need some advice on this is it wrong to ask for more after joining a firm for a month, I gave the Online Assessment before joining Amazon and out of the blue i got an email for interviews. So what should I do here?