Just adding in my 2 cents, I would advice to go for Hybrid. As you have yourself mentioned that most of the riding that you do is on roads then why go for MTB. infact you should consider putting a sleek tire on your MTB also that will give you more speed.
Aaron for me and a lot of my cycling buddies sleek tires has resulted in increased speed as well as efficiency
Sir considering your age my advice is Hybrid bike.
Decathlon Stores offer best prices, check their facebook pages every store has their pages which depends upon the place where the store located. I saw a offer for large size RR300 for 8999/- recently.
Get into Track & Trail stores they have some old models which they sell for lesser prices. Schwinn sporterra old models sold for 21k. Old models means 2013,2014 which has same components different colors will be changed by company every year.
As u live in Tamilnadu checkout their facebook pages.
Call some dealers and query regarding the price most of them will explain u regarding the price and offers.
As u are using a bike already i suggest u to go for a best bike more than 25k which is a good investment.
most of the international brands offer life time warranty.
montra & firefox offer 2yrs warranty only, they are made in china designed in india.
Below 20k Btwin bikes are ok but not best.
Blindly go for HYBRID as u can compete with ur son.
Dont buy any 2nd hand bikes.
I was told at Decathlon Thane that Riverside 3 frame is made in Germany.
Btwin is a France company.
I dont know where they r made.
Yes, I know its a France company.
Maybe he said assembled in Germany but I may've heard it as made.
The bicycle is made in China, i doubt even if a single spoke on it is made in France or Germany.
Which means the salesperson lied to me at Decathlon Thane. Bad. I will've to inform them then.
I've sent an email to Decathlon. I need to know the truth.