Hi Amitc, if you ticket is non-changeable/non-refundable then if I was you i would have gone for Entry Visa to avoid any risk of losing tickets or holiday you have booked, if you are confident that they will give you OCI before your departure date then you can try waiting but make sure you send them ...

Hi ALL, I have submitted my OCI on 21st may 2014 in person at London branch considering it will be processed within 6 weeks of time, I have booked little bit cheaper non-changeable and non-refundable flights with family, unfortunately after sending lots of emails they never gave any professional ...