sentence: Ratan disguises himself as Ratnadeep Sengupta and under this guise meets Mohana to charm her as he believes she is the key to the GuhaThakurta household.
modified: fix grammar: Ratans disguise himself as Ratnadeeps Senguptas and under this guises meet Mohanas to charm her as he believe she am the keys to the GuhaThakurtas households.