Well, it totally depends up on you, you have interest in Management field then you can apply for the MBA, and if you want to pursue your career in technical filed then M. tech is good for you.

I would suggest you to do M.Tech after B.Tech Food Technology, as it is very relevant to your subject.

Here I am telling you the contact details of some good M.Tech. (Food Technology) Colleges in India:

Amity Institute of Food Technology
I Block, IV Floor, Amity University, Sec-125,
Noida, Uttar Pradesh
(0120) 4392217
(0120) 4392856

Anna University - Chennai
Sardar Patel Road, Guindy
Chennai, Tamil Nadu
(044) 22351723, 22351126

Gondwana University
MIDC Road Complex,
Gadchiroli, Maharashtra

Guru Gobind Singh Indraprastha University
Sector 16-C, Dwarka
Delhi, Delhi
(011) 25302170, 25302104, 25302105, 25302113, 25302114
(011) 25302111, 28035243, 25302111

Guru Jambheshwar University of Science and Technology
Hisar- Sirsa- Fazilka National Highway (NH-10)
Hisar, Haryana
(01662) 263101, 263104, 263130, 263199, 263563, 263369

Guru Nanak Institute of Technology (GNIT)
157/F, Nilgunj Road, Panihati,
Kolkata, West Bengal
(033) 25233900
9432012562, 9432011483
(033) 25637957

Harcourt Butler Technological Institute
Nawabganj
Kanpur, Uttar Pradesh
(0512) 2534001, 2534002, 2534003, 2534004, 2534005
(0512) 2533812

Institute of Chemical Technology (ICT)
Nathalal Parekh Marg, Matunga
Mumbai, Maharashtra
(022) 33611111, 33612222
(022) 33611020

Jamia Hamdard University
Hamdard Nagar
Delhi, Delhi
(011) 26059688
(011) 26059663

National Institute of Food Technology Entrepreneurship and Management (NIFTEM) Plot No. 97 Sector 56, HSIIDC Industrial Estate, Kundli
Sonepat, Haryana
(0130) 2281000, 2281042, 2281043, 2281044
(0130) 2219772

Raja Balwant Singh Engineering Technical Campus Bichpuri Campus
Agra, Uttar Pradesh
0562) 2636675, 2520998
9411204054
(0562) 2636718

Sam Higginbottom Institute of Agriculture Technology and Sciences (SHIATS)
NH-27, Mahewa East, Naini,
Allahabad, Uttar Pradesh
(0532) 2684281, 2684781, 2684250
(0532) 2684394

Vignan University (VU)
Vadlamudi
Guntur, Andhra Pradesh
(0863) 2534645, 2534646, 2118487, 2118488
8666593777, 8500544879, 9912333673
(0863) 2534468