Design

If you are asking whether you can do two-degree courses at the same time then no. As per UGC notification In 2016, it stated that a student cannot attempt or possess two-degree courses at the same time.

Hi,
Students have reserved seats in the NIFT University which makes admissions easy:
https://www.shiksha.com/design/nift-entrance-exam

Of course, you will get job after completing your designing degree. You will be placed in various industries like production, garment manufacturing, ceramics, jewellery and lot more. Big MNCs and establishments like Amazon, Myntra, Reebok, Automobiles hires deginers. Designers have a lucrative lifestyle due to their high profile standards. Main thing is that for getting a lucrative job and lifestyle you need to study in a high profile design institute like NID, NIFT, IIT.

Yes, there may be a weekend batch. You are advised to go through this link and visit their official site and seek information from their staff.
https://www.shiksha.com/college/ymca-new-delhi-connaught-place-48938

Hi,
You may refer this link:
https://www.shiksha.com/design/interior-design/colleges/colleges-Bangalore

There is no age limit for doing B.Sc, you can do B.Sc only, if you have passed your intermediate.

Hello,
You can check it by clicking here:-
https://www.shiksha.com/college-predictor

NIFT was established in 1986 under the aegis of the Ministry of Textiles, Government of India and is an institution of design, management and technology for the international fashion business. It has a campus in Mumbai as well. Admissions are through Entrance.

yes, you can
As mentioned before, some institutes do allow 10th passed students to pursue Diploma and certificate courses. . Most of the professional interior design courses can only be pursued after completing 12th standard.