MBA/PGDM

You can refer the link: https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india-accepting-mat/2-2-0-0-306

MBA program
1.IGNOU
2.ICFAI University
PG Diploma
1. Symbiosis

Placements (in INR; as provided by college)
8.20 Lakh Average Salary (Annual)
17.20 Lakh Maximum Salary (Annual)
Companies where students got placed
99acres.com
Asian Paints
Axis Bank
Berger Paints
Beroe
Blue Dart
Bosch Ltd
CITI Bank
Colgate
Palmolive
CRISIL
Decathlon

Total Fee-
INR 2.12 Lakh
(Fees Components : Tuition)
Disclaimer: Total fee has been calculated bases year 1 fees provided by the college. The actual fees may be revised next year.
https://www.shiksha.com/mba/course/master-of-business-administration-maharashtra-institute-of-technology-mit-pune-kothrud-85977

With this score, you can hardly get admission in any good college. Its better if you give a shot to good individual/state level entrance exams which are being conducted every year by various institutes/states for students who don't meet national tests score criteria. You can appear for TANCET MBA test conducted by Anna University, UPESMET test conducted by UPES University, KMAT etc.
Last dates to apply for these exams are very close like last date to apply for UPESMET is 5th March, 2016 while for TANCET its March end. So, apply for these as soon as possible and start your preparation.

You can refer this link:
https://www.shiksha.com/resources/college-comparison-109910-241832

IIMs
FMS
IIFT
NITs
SP JAIN
IITs
BITS Pilani

As a student of TSM, my opinion is TSM is better than PSGIM.
TSM: Development Immersion Programme, Rural Immersion Programme, loaded with assignments so that you can easily manage corporate work, ethics and values are given importance. 2016 MHRD rating: 15th,Top B-Schools (All India) Hansa Research Survey: 51st.
PSG: More global exposure, choice-based credit system, experiential learning with games, unique pedagogy .Top B-Schools (All India) Hansa Research Survey: 43rd.
Whatever is the college's resources or ranking, you will have to sweat it out and efficiently utilize it.
Best of Luck! Make a wise selection and work consistently.

MBA Academic Fee: 4,90,000/- , Hostel Fee: 95,000/-, Total Fees: 5,85,000/- for TSM through TANCET.

Look, one must focus on one thing at one time and while you are doing graduation along with internship, so it is advisable that you must complete the ongoing thing. Regarding extension, you can always call them or just mail them regarding your query I hope they may consider it.