If you are willing to spent money to goto singapore then getting the visa stamp is the best option as it has got limited risk. Below are some of the answer to question which usually arises who didnt goto singapore. As i have been to singapore quite a number of times so thought of giving some light to the applicant who can plan togo to singapore for visa stamping in person.
1. Can a survive without a passport in Singapore after I submit it to sgvo?
Once you submit ur passport to sgvo, it will give you a receipt and even if you are caught you can show this recepit to anyone and tell them that your passport is submitted to sgvo for visa stamping and also make a photocopy of the visa page. And in anyway nobody ask for passport in singapore and even if they do you will have the receipt to prove your grounds that you are legally staying in SG.
2. How should i plan my schedule?
Singapore Flights in tigerairways will be the cheapest and their schedule is the they depart from dhaka at 2 am in morning and arrives 8:30 am morning time in singapore. So you must schedule it on Monday. You arrive monday morning at 8:30 am by tiger airways and after immigration you will get out at 9:30 am. Instead of taking risk, take a taxi directly to your hotel, checkin to hotel and then take taxi to sgvo and submit it on same day. You cannot goto sgvo directly from airport because during the time of checkin to hotel they will ask for your passport.
If I conisder that you submit your passport on monday with three business days your passport willl be return back on Wednesday with Tiger airways return flight is at 10:30 pm. So you can have a return on wednesday. If you dont want to take risk then you can opt for thursday with one day extra in your hand and for that you may need to pay extra one day stay at hotel.
How much is the hotel cost
Hotel will cost you average 100 SG$.
How much is fooding.
Per day it will cost you 20SG$
How much total budget should I make.
Airfare : 540 SG$ (If your return date is changeable, if ur retiurn it fixed then it will cost 440 sg$)
Accomodation : 300 SG$ (For three night stay MON, TUE,WED)
FOOD : 80 SG$
TAXI Fare : 280 SG$ (Which I calculated MAximum)
VISA FEE : 100 SG$
Total : 1300 SG$
So In total you need to make a budget of 1300 SG$
Hope this helps to make your decision.