State Bank of India (SBI) has increased fixed deposit (FD) rates for some select maturity periods.According to the revised rates, SBI is offering 6.8% interest rate on FDs with a maturity period of one to two years (earlier 6.7%).The interest rate for senior citizens also goes up to 7.30% on SBI FDs for one to two years (earlier-7.2%).Now, SBI is offering 6.80% interest rate on FDs with maturity period between two to three years (earlier- 6.75%).The interest rate for senior citizens goes up to 7.30% on SBI FDs for one to two years tenure (earlier 7.25%)SBI has kept interest rate unchanged for FDs with other maturity tenures.