Mystery Numbers - Math Magic Square description

Vichitra Games presents a new math puzzle 'Mystery Numbers'. Inspired by legendary mathematician Ramanujan.
Ramanujan created a magic square using his birth date (22-12-1887) in such a way that addition of all rows, columns and diagonals was same.
Rohit Kulkarni found the mystery behind this square and created same kind of magic square using his birth date (29-01-1988)
Rohit developed the algorithm and transformed this idea into a new math puzzle. This algorithm can generate infinite number of combinations of such mystery numbers.
This is a new and unique puzzle. It is a treat for mathematic lovers and who likes to use their brain.

It is divided into four difficulty modes.

1. Easy: In easy game, 8 numbers out of 16 are already placed at correct positions, user needs to arrange remaining 8 numbers at correct positions.

2. Medium: In medium game, 6 numbers out of 16 are already placed at correct positions, user needs to arrange remaining 10 numbers at correct positions.

3. Hard: In hard game, 4 numbers out of 16 are already placed at correct positions, user needs to arrange remaining 12 numbers at correct positions.

4. Very Hard: In very hard game, no numbers are arranged and user needs to arrange all the 16 numbers at correct positions.

User gets one point for each individual correct addition, and gets bonus upon solving the complete puzzle.
Score of game is calculated using following formula
score = points * difficulty + bonus
where difficulty is 1 for easy, 2 for medium, 3 for hard and 4 for very hard

Leader board is also integrated in the game. Total points of the user decides the position in the leader board.

Can you unlock the mystery behind these numbers?