Suresh was born on 4th October 1999. Shashikanth was born 6 days before Suresh. The Independence Day of that year fell on Sunday. Which day was Shashikanth born?

Here , Shashikant was born on 29th September 1999.
∴ 15th August, 1999 was Sunday.
Days upto 29th September from 15 August
( i.e. 16 to 31 August month + 1 to 29 September month ) = 16 days + 29 days = 45 days = 6 weeks 3 old days
∴ Sunday + 3 days = Wednesday.
Hence , Shashikanth born was Wednesday.