According to media reports, the couple will formalise their relationship through a registry marriage, keeping the celebrations private and limited to their inner circle.
Close-Knit Celebration Planned
The guest list is expected to feature only a handful of close associates and family members, including Bollywood superstars Shah Rukh Khan and Salman Khan.
Sources quoted by India Today said the couple is in a comfortable phase of their relationship and wanted a simple celebration of their bond.
"They are both in a secure place and only wanted to celebrate their bond."
The source added that preparations for the wedding have already begun.
"They have already started preparations for the wedding, which will be a close-knit event attended by their close ones."
Aamir Introduced Gauri Last Year
Aamir, 61, reportedly introduced 47-year-old Gauri Spratt as his girlfriend during an informal gathering in Mumbai last year, making their relationship public after months of speculation.
Aamir's Marital Journey
Before his relationship with Gauri, Aamir Khan was married twice.
He first married Reena Dutta, with whom he has two children, Junaid and Ira. Following their separation, the actor married filmmaker Kiran Rao, and the couple has a son, Azad.
Although Aamir and Kiran announced their separation a few years ago, they have continued to maintain an amicable relationship, co-parenting their son and collaborating professionally.