Cobra

Raja (Mammootty) & Kari (Lal) are fraternal twins who often evoke disbelief because of Raja being fair & Kari being dark, with Kari himself always suspecting that they got swapped at birth. They buy the house of John Samuel (Lalu Alex) & woo his daughters Annie (Kanika) & Sherly (Padmapriya). Brothers Isaac (Babu Antony) & Albert, who were after the sisters & Samuel's hospital cause frequent woes for them & Samuel decides to settle the matter with a boxing match between Raja-Kari & Isaac-Albert. (Summary by iceblox)