Ma'am, these are the details extracted from their websites:
Registered office:
Wipro Limited
Doddakannelli, Sarjapur Road
Bengaluru - 560 035, India
Ph: [Phone Number Removed For Privacy-Reasons], [Phone Number Removed For Privacy-Reasons], [Phone Number Removed For Privacy-Reasons]
Fax: +91 (80) 28440254
https://www.wipro.com/locations/#India. You can use the 'contact us' boxes for filing your claims online as well.
Wipro Limited, Manikonda Development Center (MKD):
203/1, Manikonda Village, Gatchibowli SEZ
Hyderabad - 500032
Tel: [Phone Number Removed For Privacy-Reasons]
Wipro Limited, Nanakramguda Main Road:
Wipro Campus, Gachibowli, Hyderabad, Telangana, 500032.
You can submit filled-in forms for claiming unpaid salary, encashment of leave, EPF, Gratuity, etc. Also, you may find out details of any LIC, pension contributions he was maintaining, and if you can retrieve copies from his files based on which you may file claims.