Everyone knows that the simplest way to disguise yourself in Bollywood is to wear a pair of sun glasses. In order to accommodate a slightly more intelligent mainstream audience, the said pair of sun glasses has ceded the throne to a beard stuck on with insufficient spirit gum.
Last names are irrelevant in the Bollyverse. Honorifics are applied directly to first names (Mr. Suresh, Miss Mala) and the surname is only heard, if at all, in court scenes when summons are read. The 90s have tried to reinstate the importance of the last name, but the likes of Tyson, Jibran, Jorrat and Jindal never really entered the standard court room at Filmistan.
No fingerprints will ever be left behind on any item of evidence by any police officer or any investigating entity; the only films that are allowed to violate this directive are those in which the guilty party happens to be a police officer or investigator either pretending to go through the motions or arriving to clear his/her tracks.