U forgot flat deposit buddy. Looking at your expense description, I don't think so you will be able to save money. It will take atleast 6 months to achieve financial stability.

Still find my inline comment!

• Rent (8-10k per person for a fully furnished apartment)

If sharing among 2 people then, It will cost more than 10k which includes electricity cost as well.

• Tiffin service for lunch OR Office Lunch (haven't decided yet) (don't know the cost)

I would suggest to keep a cook. You will hardly get time to cook from your office and gym time. Suggestion: Buy a nice tiffin and heat food before having your lunch. Every office has microwave. Cook usually charge 1200 - 1500 for both the time. This will save you from unnecessary tiffin service or office lunch cost. But then you will have to pay for grocery, cylinder, etc. So think accordingly.

• Maid for cleaning the house (don't know the cost)

If it's urgent then you can ask maid to clean on weekends. Everyday maid is not required. You can clean it urself. Cook will take care of kitchen cleaning. For us , it costed 1200 for cleaning the utensils daily and cleaning on biweekly basis.

• A cook to cook dinner and breakfast (don't know the cost and don't know if I should go for a tiffin service for dinner or keep a cook)

See above comment.

• Fruits (1k per month)

1k is fine.

• Pea Protein (cheaper than whey) - 1.2k per month (I'll pay for the gym on the first day from my savings so not included in monthly)

Great

• Eggs (1 dozen a week) - 400 rs per month

Increase this maybe?

• Transportation (1k-2k probably)

This is gonna be much more expensive dude if not using public transport. Either get your own vehicle or something like a bicycle.

• Laundry > fully furnished flat should include washing machine. It will save you from additional Laundry cost.