As you are looking for information about salary and perks given to PO in Union Bank of India, so here I am providing following information:

Union Bank of India Salary and Perks for Probationary Officer:

Salary Major A Other places in Other places
class cities : Area I(State (District level
Metro Cities Capitals etc) and Rural Places)

Basic Salary Rs.14500.00 Rs.14500.00 Rs.14500.00

Dearness Allowance (110.10%)
Rs. 15964.50 Rs. 15964.50 Rs. 15964.50

CCA(4% max Rs.540=)Rs. 540.00 Rs.375.00 NIL

HRA (Major A class cities - 8.5%, Other places in Area I -7.5%, Other places - 6.5%) Rs.1232.50 Rs.1087.50 Rs.942.50

Total Rs. 32237.00 Rs. 31927.00 Rs. 31407.00

Add 15 % increase in pay slip as per new settlement which is expected to be implemented from June 2015(w.e.f. Nov 2012)
Rs.4835.00 Rs.4789.00 Rs.4711.00

Gr Total Rs. 37,072.00 Rs. 36,716.00 Rs. 36,118.00

Perk and Facilities at Joining Time for PO:

Salary Major A Other places Other places Other places
class cities : in Cat A Category B Category C
Metro Cities Centers(State Centers Centers
Capitals etc)
Leased House Rent Rs.12,500.00 Rs.10,000.00 Rs.7,500.00 Rs.5,500.00
Travelling Allowance Rs.3,000.00 Rs.3,000.00 Rs.2,700.00 Rs.2,300.00
News Paper Rs. 250.00 Rs. 250.00 Rs. 250.00 Rs. 250.00
Cleaning Materials Rs.600.00 Rs.600.00 Rs.600.00 Rs.600.00
Business Development Expenses
Rs.300.00 Rs.300.00 Rs.300.00 Rs.300.00
Medical Aid Rs.450.00 Rs.450.00 Rs.450.00 Rs.450.00
Total Rs.17,100.00 Rs. 14,600.00 Rs.11,800.00 Rs.9,400.00