It sounds like you're referring to a post about a collection of Malayalam (erotic or adult-themed stories), specifically titled or described as "Ammayiammaye Merukki" and noted as being "portable" (possibly meaning a digital or e-book format, or a small physical booklet).
The "4" in your query indicates the fourth installment in this specific story arc, as these narratives are often released in sequential parts to keep readers engaged. Telegram: View @Docma_ru ammayiammaye merukki 4 malayalam kambi kathakal portable
Unlike mainstream literature found at major publishers like Chintha Publishers or on official Kindle Store Malayalam lists, this series is primarily found on independent file-sharing sites and specialized forums. "Kambi Kathakal" It sounds like you're referring to