Take the current CTC
Multiply the current CTC by 30%
Add the result to the current CTC
Formula: New CTC = Current CTC × 1.30
Formula: Hike Amount = Current CTC × 0.30
Example: If CTC is 10,00,000, then hike amount is 3,00,000
Example: New CTC after 30% hike is 13,00,000