still makes the total years to 17.""
As per the definition of continuous service(sec 2a(1) of Payment of Gratuity Act 1972),these 60 days of hospitalisation also counts for working out total service.
Just for information
29th June 2018 From India, Pune
29th June 2018 From India, Madras
Regarding the 60 days negative leave: In my opinion the salary for the 60 days negative leave should be deducted from the gratuity
In this case
Gratuity: 150,000*15/26 *17= 14,71,153 Rs
negative leave: about 3,00,000
= amount to pay: 11,71,153
29th June 2018 From India, Delhi