Document requirements for parents' visa for pregnancy

[Kshitiz Tyagi]

Hello,

I want to apply for a tourist visa for my parents, on a slightly urgent matter. My wife is about 7 months pregnant, and we are currently dealing with a medical issue where the doctor has basically told her to go for a complete bed rest. My parents were planning to be here during the baby's birth next year in February, but because of the urgent situation right now, it would be nice to have at least 1 parent here.

I have a Tier 2 work permit and have a permanent job. My wife is on a dependent visa. Since my job is full time, it will be nice to have a parent around to be with my wife during this medical issue. Both my parents are full time working in India, and will be going back to their jobs.

I need help in determining what documents to include, in addition to the standard documents required. Also, I am not sure how much of the details to include in the invitation letter (mentioning pregnancy, but should I mention medical complication?).

Please reply asap.

Thank you,
Kshitiz Tyagi