The Reliance Tax Saver fund hasn’t done well over the last 5 years compared to the category. However over a 10 year horizon it has done well. The other fund you picked from Aditya Birla is a good choice.
Continue investing in the SIPs and make sure you do so only in direct plans. You then get upto 40% more in long term portfolio size by avoiding commissions and brokers.
You can easily switch past investments to direct plans online by clicking here.