This issue is been faced by my yelder brother in his organisation. Salary Decreased with a proper justification.
He works in a small IT company in Siruseri, working for 3 years and 6month now. He was hired as a contract 3 years bond, if at all have to resign before this 3yr have to pay conpensation. During this 3years he was payed less, due to his hard work and top performed he got this permanent letter and very good Hike on completing 3 years. His pay increase from 2.6L to 4.Lakh for 5 members of this team, for others it is little less. Due to seniors questioning the management how juniors can be given big hike, management to sort this issue, From the next month onward they have decreased the salary without prior noice. HR of the company called and said you and your 5 members salary is hike by mistake so we have to reduce it, till now there is no reviced letter is issued.
He has emailed his manager and HR tried his best effort seeking justice. without a proper justification and reason reduce the package all of a sudden and not issued re-revised hike letter also. and they have not replied to any email which he has sent to the HR. HR speak in person saying nothing can be done, it is a my mistake please accept my apoligize and he is not ready to reply to email. Please advice how we can proceed further, how to approach for this issue.