GHz from OVRO 40 m telescope in the same period. No significant increase of activity is detected from radio to TeV $\gamma$–rays from 1ES1218+304 during the period from March 1, 2013 to April 15, 2013.'
address:
- |
    Astrophysical Sciences Division, Bhabha Atomic Research Cente.\
    Mumbai- 400 085, India.
- |
    Aryabhatta Research Institute of Observational Sciences.\
    Nainital- 263129, India.
author:
- K K Singh
- K K Yadav
- A K Tickoo
- R C Rannot
- P Chandra
- N K Agarwal
- K K Gaur
- A Goyal
- H C Goyal
- N Kumar
- P Marandi
- M Kothari
- H Bhatt
- K Chanchalani
- N Chouhan
- V K Dhar
- B Ghosal
- S R Kaul
- M K Koul
- R Koul
- K Venugopal
- C K Bhat
- C Borwankar
- J Bhagwan
- A C Gupta
title: 'Search for TeV $\gamma$–ray emission from blazar 1ES1218+304 with TACTIC telescope during March-April 2013'
---

Blazars: 1ES 1218+304, Cherenkov Imaging telescope: Very high energy gamma-rays, Multi-wavelength observations.

Introduction
============

Blazars are observed to emit highly variable non-thermal radiation spanning the entire electromagnetic spectrum. The Spectral Energy Distribution (SED) of blazars is 