You can reduce the home loan tenure through following methods. They are
Make prepayment of part-prepayment: As per the RBI guidelines, there is no fee levied on making prepayment and part-prepayment on home loans. if you have a huge amount of cash, you can make the prepayment and reduce the tenure.
Home loan balance transfer: By switching your current home loan to another bank, you can reduce to the interest rate on your home loan and tenure as well.
Switching from Base Rate to MCLR: You can convert your home loan from base lending rate to MCLR within the same bank to reduce the interest rate and thereby you can also reduce your home loan tenure.
Finally, you can approach the bank to increase the EMI amount and thereby reduce the tenure. By doing all the above you can reduce the tenure and loan burden as well.