Why is my UK visa delayed? [duplicate]

I applied for a UK Standard Visitor visa for on 23rd August 2018 at the visa application centre in Mumbai. On the same day, I got an SMS saying The visa application for [GWF reference number] was forwarded to UKVI on 8/23/2018.

I have applied for non-settlement visa that is supposed to be processed within 15 working days. Four of my colleagues applied at the same time and were issed a visa on 8th Sep 2018.

Today I received this notice by email:

NOTIFICATION LETTER TO ADVISE THAT APPLICATION MAY NOT BE PROCESSED WITHIN SERVICE STANDARDS

Your Reference: UKVI / GWF

12/09/2018

Dear Thank you for your UK visa application which has been received and is under consideration. We aim to process applications:

Non-settlement within 15 working days

Priority Visas within 5 working days

Settlement within 60 working days.

Unfortunately, we will not be able to make a decision on your visa application within these service standards because we require further information to fully assess your application. We will contact you should we require any additional information from you.

Please be assured that we will continue to progress your application to enable a decision to be made as soon as possible. We will notify you by email once a decision has been made.

Please do not go to the visa application centre until you have been advised that your passport is ready for collection.

Anybody got similar email? Did you get the visa? After how many days later you got the visa? Is it sign of refusal?

uk standard-visitor-visas

Pictures about "Why is my UK visa delayed? [duplicate]"

Why is my UK visa delayed? [duplicate] - Rock of Gibraltar

Why is my UK visa delayed? [duplicate] - Cherry Blossom Tree Beside Black Bridge

Why is my UK visa delayed? [duplicate] - Green Leaf Plant Beside River

Why are UK visas getting delayed?

UK Visas & Immigration (UKVI) is experiencing very high demand meaning that, in some cases, it may take longer than usual to process visas. We encourage all new applicants to apply for their visa as early as possible and not make travel plans until you receive your visa.

Are there delays in UK visa processing?

However, the Home Office has announced that both priority and super priority visa services are currently temporarily suspended for new study, work and family visa applications submitted outside the UK whilst it prioritises Ukraine Visa Scheme applications. This suspension has been in place since 14 March 2022.

What causes delay in visa processing?

Delays are usually caused by additional security and background clearances due to your citizenship, ties to specific countries, or field of study. These additional clearance checks may take several weeks to several months to process. There is no way to circumvent or expedite this process.

What happens if my visa is delayed?

In the event of an undue processing delay, and as a last resort, one can request an Order of Mandamus from Federal Court to compel the IRCC to decide the case. Before doing so though, the applicant must exhaust all other options of following up with IRCC after the expected processing time has passed.

UK VISA processing time update 2022 | Why it is getting delayed | How to get UK VISA faster

Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

Images: Samuel Sweet, Anatolii Maks, Pixabay, Mike B